# Why Density Is Measured At 15 Deg C

• When traversing a duct side less than 18 in. This will prevent any bacteria from growing. 00005 Longitude of ascending node (deg) -11. Their results were published in terms of both relative and absolute viscosity. As you can see in the chart, water only has an exact density of 1 g/cm 3 at 39. Density is a measure of mass per volume. By default, rulers begin measuring from the upper-left corner of a page or. An old tale states that Archimedes wanted to determine whether a goldsmith was stealing King Hiero's gold and using a cheap alloy to replace the gold in a wreath that was being made. This is measured in grams per centimeter squared (g/cm 2). 0002 m3/m3 degrees C) and multiply it by the temperature difference, which is 10 degrees C in this example. Thanks for your great contribution. F(59°F ~104°F, 1°F step)is available. In addition, explore hundreds of other calculators including topics such as finance, math, health, fitness, weather, and even transportation. Fahrenheit to Celsius is a different matter. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Basics of Slope Calculations (SD - HD - Elevation) Slope Measures - Units. This is called the standard (average) lapse rate. An insulin sensitivity? A ratio? A Correction Factor (sometimes called insulin sensitivity), is how much 1 unit of rapid acting insulin will generally lower your blood glucose over 2 to 4 hours when you are in a fasting or pre-meal state. The viscosity at different temperatures can be calculated using the viscosity at 40°C and the viscosity index (VI), which represents the temperature dependency of the lubricant. 15 Specific heat indicates the amount of heat that must be added to 1 g of a substance to raise its temperature by 1 K (or 1°C). Hg or 1013. Thus, body temperature is written as 37 degrees Celsius. The textbooks generally point out five problems with using GDP as a measure of well-being: Quotes delayed at least 15 minutes. If we want to understand what temperature means on the molecular level, we should remember that temperature is the average energy of the molecules that. 6 times as great can be measured if mercury is used. 225 kg/m³ (0. The Brainly community is constantly buzzing with the excitement of endless collaboration, proving that learning is more fun — and more effective — when we put our heads together. 25 hPa or 101325Pa) and temperature (15 o C). Compaction is a process that brings about an increase in soil density or unit weight, accompanied by a decrease in air volume. For methane, the company Aire Liquide (webpage) presents the following values:. A mixture is prepared from 15. To learn more, visit Wunderground. What is the volume of 50. If you change the air temperature, humidity, or the altitude (and hence the pressure), the air density will change, too. The unit of heat energy is the calorie: one calorie is the amount of energy needed to raise the temperature of 1 gram of pure water 1 degree Celsius. 225 kg/m3 at sea level and 15 degrees C. Chapter 22 Solutions Problem 1: A +15 microC charge is located 40 cm from a +3. This specific gravity can also be known as relative density, because the density of the measured liquid is determined by its density compared to the density of water (Grapestompers). As 1000kg of pure water @ 4°C = 1 cubic meter, those materials under 1000kg per cubic meter will float; more dense materials will obviously sink. I just have a question about reading the number of density then. At a flow rate of two litres per minute, a 8. A measure of how much matter is in a certain volume is termed as a density. com with free online thesaurus, antonyms, and definitions. 016 kg/m³ at 60°F, based on new laboratory work and using ITS-90 has been adopted for use in any conversion between density and relative density or API gravity. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled. 00 kPa and zero degrees Celsius). 2 Table 1 Typical Properties of Teflon® PTFE Fluoropolymer Resins ASTM Teflon® PTFE Property Method Unit Granular Resin Fine Powder Tensile Strength, 23°C (73°F) D4894/4895 MPa (psi) 31. F(59°F ~104°F, 1°F step)is available. The density decreases from 0. If you heat it or cool it, it will expand. Rinse it with distilled water and let dry. In our calculator, enter the temperature in degrees C or F (click anywhere outside of any of the fields for the conversion), and the salinity in mg/L or the equivalent of PPM. 3) mm and type B (12. Vapor Pressure of WATER Interpolate to obtain vapor pressures at temperatures which are not integers (whole numbers). The hydrometer can be used to measure the specific gravity of any liquid. 52 Ethylene C 2H 4 28. I used a digital anaemometer from Jaycar ($70). 6 degree centigrade. For a ball of radius R, A = 3. What is the sum of these four angle measures? Come up with an explanation for why anything you notice must be true (hint: draw one diagonal in each quadrilateral). 225 kg/m³ (0. There are 360 degrees in a full circle. Suppose you had a 1000 cc of kerosene at 15 deg C and it weighed 800gm. At 4°C and salinity of 35, the density σ of sea water is 1. 0 g of ai? Source(s): density dry air measured 25 degrees celsius 1 19x10 3 cm 3 volume 50 0 ai: https://biturl. To measure the direct normal component of the solar irradiance only, an instrument called a normal incidence pyrheliometer or NIP is used. If the density of the crown was 1. Rittenhouse, Eastern Michigan University PURPOSE Learn the relative precision of liquid measurements using beakers, graduated cylinders, and volumetric pipets. In addition, explore hundreds of other calculators including topics such as finance, math, health, fitness, weather, and even transportation. So degrees of freedom for a set of three numbers is TWO. Drag Racing Calculators,Calculators to find 1/4 mile ET and MPH, CID,Piston Speed,gear ratio,carburetor size,margin of victory,Engine calculator, Calculates relative horsepower, air density, density altitude, virtual temperature, actual air pressure, vapor pressure and dyno correction factor and more. The measure-ments at temperature above 323. Check our FAQ section for more details. in 1975 ISO, ASTM, STLE, BSI and DIN settled the ISO VG to minimize the confusion of defining the viscosity of a lubricant, and to use one system by all lubricants practitioners, there were a few criteria to keep such as referencing the lubricant. 853 g / L at 745. 785 then we can calculate that its density is 0. Because the air can contain a lot more moisture in 30-degree weather than in 20-degree weather, we feel the effect of humidity a lot more when the temperature reads 30 degrees, even though the relative humidity. To measure the direct normal component of the solar irradiance only, an instrument called a normal incidence pyrheliometer or NIP is used. 19 x 10^-3 g/cm^3. At 25 degrees Celsius the density of fresh water is 997. An important property of any gas is temperature. If you have osteoporosis, you might mistakenly think exercise will lead to fracture. 789 g/cm 3 at the temperature of 20 °C. If the density of the crown was 1. For example, at 0°C the density of water is 0. 069 g/mL as compared to 1. MEASUREMENTS The quality of a measurement is evaluated by. “N’ can also be the number of. This is why the cSt centistokes numbers more accurately show oil viscosity. 2 mm, a thermal conductivity value of 0. In some cases the standard conditions may be 15 °C (59 °F) and not 60 °F (15. The electrons carry a negative electrostatic charge and under certain conditions can move from atom to atom. Non-SI Units. 15 / 15 o C. 9 (c) 498 − 97. As specific gravity is just a comparison, it can be applied across any units. Because specific gravity is a ratio, it has no unit. Two and a half months and 300+ hours later, we waded through rivers, lakes, and Puget Sound, through temperatures down to 20 degrees, to find the best boots for any situation. Strict adherence to SI units would require changing directions such as "add 250 mL of water to a 1-L beaker" to "add 0. There are two basic measures of density or unit weight applied to soils: Dry density is a measure of the amount of solid particles per unit volume. 0023769 slug/(cu ft), 0. sodium melts at 98 degrees C. Specific heats can vary slightly with temperature, so for precise measurements the temperature is specified. It's used to measure the ratio (called specific gravity) of the. On a baseline level, measurements fall into the categories of weight, area, volume, length and even temperature. Some of these non-SI units are given below. For example, the density of seawater (S = 35) changes from 1. If you change the air temperature, humidity, or the altitude (and hence the pressure), the air density will change, too. Density is affected not only by temperature and pressure but also by the amount of water vapor in the air. Conversion Equation is linear and display is in 12 different units. Why is the amount of gas in magma important in relation to volcanic eruptions? What chemical and physical characteristics of magma are most important in whether the magma erupts explosively or non-exzplosively? Define the following terms (a) viscosity, (b) block, (c) bomb, (d) ash, (e) eruption column, (f) pyroclastic flow, (g) lateral blast. a) This state is characterized by the lowest density of the three b) This state is characterized by an indefinite shape and a high density. An important property of any gas is temperature. 6 hours ago · If Pathways was the full measure of homelessness and hunger in Haywood County — it’s not — this claim appears to be true. For emulsions, the volume is corrected to 60oF (15. Chapter 22 Solutions Problem 1: A +15 microC charge is located 40 cm from a +3. The size of the Celsius degree is the same as the size of the Kelvin degree. Let’s say that the furnace is operating at 1000 deg. Absolute Zero occurs at 0 degrees Kelvin or -273. According to SIMetric, the density of water at 4 degrees Celsius and standard. impact crater sizes, crater size, crater diameter, crater equation, crater size equation, impact cratering, impact crater, crater scaling, planetary craters, crater. For example, the row/column shaded in yellow shows the density of pure water at 17. (NYSE:CHGG), a Smarter Way to Student, today reported financial results for the three months ended September 30, 2019. The density depends not only on temperature, but also on salinity, see the wikipedia page on seawater, which has this neat diagram:. Ethane C 2H 6 30. So, when you measure the Specific Gravity of your unfermented wort (often referred to as the “Original Gravity,” since it is before fermentation), you are measuring all of these things at once. Thanks for your great contribution. Density of Seawater T in deg C, p in "dynamic km ocean pressure measured relative to surface (ignore atm) 2. Density is a substance's mass per unit volume. Answering questions also helps you learn!. Ocean water is more dense because of the salt in it. " okay i don't know how to answer that, can you help?. 15 K, the ice point. Celsius to Kelvin temperature conversion is simple because both scales have the same size degree. Thus, in a traditional definition, one calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C, from 14. In case of ethanol, its average density is 0. Breaking news and analysis on politics, business, world national news, entertainment more. 0 cm on each edge?. A dilute aqueous solution has a density of 0. 8 degrees Fahrenheit. Subject: Re: The temperature at which pure nitrogen becomes heavier than air From: neilzero-ga on 24 Nov 2002 13:15 PST 8. Two and a half months and 300+ hours later, we waded through rivers, lakes, and Puget Sound, through temperatures down to 20 degrees, to find the best boots for any situation. Ivy Tech Community College prepares you for a high-demand career that you can get into quickly, or provides an affordable path to earn your bachelor's degree. Welcome To ARRT. 6 barrels (at 42 gallons each). In the geosciences, angles are almost always measured in degrees, where a circle is 360 degrees. (3,000 min. A displacer-type density transmitter registers a displacer weight of 6. quantity The name of the quantity the unit measures. Density can also be expressed as specific gravity, which is the ratio of the density of a material to the density of water. It is extracted from the natural deposits. kg a m b s c A d K e rad f cd g sr h If any of these a through h are zero, then the term is 1 and not shown. Learn how to accurately measure the density of a liquid. An ideal gas is going to follow the ideal gas law (PV=nRT) very closely. Specific gravity of diesel fuel oil is a comparison of its density with that of pure water. 1 kg/m3 should be deducted. 92 inches of mercury). Heat and Temperature do not mean the same thing. C to 40 deg. 15 m2 is the area of this tank, T is the temperature of the water as it warms, and Thigh=290 K. Accordingly, mercury is the liquid of choice because the density of mercury is something like 13. , on Saturday, Oct. 175a Copper Solid 8. 00 g/mL, but this precise value is for 4 degrees Celsius. The specific gravity and density measure. where ρ is the density, m is the mass, and V is the volume. Another parameter used in calculations of gases is the Ideal Gas Constant, represented as R. 86 Lead Solid 11. You can measure flow through a variety of different devices such as Coriolis, differential pressure, vortex, magnetic, ultrasonic, turbine and positive displacement meters, Flow Technology Advisor. For example, the density of gold is 19,300 kg/m 3 , so its specific gravity is the following: Specific gravity has no units because it’s a ratio of density divided by density, so all units cancel out. To measure the direct normal component of the solar irradiance only, an instrument called a normal incidence pyrheliometer or NIP is used. m3/h usually correspond to the flow at pressure conditions (7 bar and 60°C), where the density of the air is 8. from true density at 20°C Brix Emmerich Saccharose content in percentage weight (% w/w), according to A. Bond Abstract—Construct validity is about the question, how we know that we're measuring the attribute that we think we're measuring?. We've heard the TV meteorologist give the daily value of the temperature of the atmosphere (15 degrees Celsius, for example). The density of dry air measured at 25 degrees C is 1. 99567 grams/cubic centimeter (source: CRC Handbook of Chemistry and Physics, ed. Depends on what kind of alcohol. Barometric pressure and room temperature are carefully measured and recorded. That is why ice floats on water, for which we should all be thankful because if water behaved "normally" many bodies of water would freeze solid in the winter, killing all the life within them. 5 degrees Fahrenheit for every 1000 feet of elevation you gain (or about 1. 99987 g/ml 14. Healthcare providers measure bone density in the hip and spine for several reasons. Measure about 10 g of. (Huge!!!) When mercury is used as a liquid for manometer, the vapor pressure of water at 20 °C (2. For emulsions, the volume is corrected to 60oF (15. Then divide 1. In Celsius, a chilly day at 11°C does not seem greatly different from a really hot one at 35°C. Water - Density Viscosity Specific Weight. We have some experience with temperature that we don't have with properties like viscosity and compressibility. The density of dry air measured at 25 degrees. Learn vocabulary, terms, and more with flashcards, games, and other study tools. For storing foods for shorter periods keep it in a fridge at 5 deg C or lower. 58kPa) will produce 650mm of height difference. Soil Temperature Variations With Time and Depth Soil temperature fluctuates annually and daily affected mainly by variations in air temperature and solar radiation. C to 40 deg. “N’ can also be the number of. (c) the number of gallons of gasoline necessary to fill an automobile gas tank (d) the number of cm in 2 m (e) the mass of a textbook (f) the time required to drive from San Francisco to Kansas City at an average speed of 53 mi/h. The pressure of the atmosphere varies with time and location. 000 for water. The chamber is usually big enough so that any flow velocities here are negligible. Assuming T d ª T, this gives b 1 ª 6. The density of atmosphere (measured in kilograms/meter) on a certain planet is found to decrease as altitude increases (as measured from the planet's surface). Molarity of Concentrated Reagents With tabulated dilutions to make 1 Molar Solutions of common reagents. 025 g/cm 3 at 20°C to 1. 069 g/mL as compared to 1. and measure the voltage. The normal range for titratable acidity of herd milks is 13 to 20 mmol/L. Find the measure of the third angle. (Although the pressures needed may be around a thousand times smaller for sandy soil and some clays. Water requires about 4 to 5 times more heat energy to raise its temperature when compared to an equal mass of most types of solid matter. One angle measures 42 and the other measures 53. At 40 degrees Celsius, AW 46's viscosity is 46 cSt, giving it its name. Calculate the density of the liquid in units of pounds per cubic foot. Now, given the value of the test statistic (a number), and the null distribution of the test statistic (a theoretical distribution usually represented by a probability density), we want to. IXL is the world's most popular subscription-based learning site for K–12. 6575 ft3/lb (1 ÷ 0. As you climb a mountain, you can expect the air temperature to decrease by 6. The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water. Wolf that each region has a different allowable temperature of asphalt at the time of lying about300 °F (roughly150 °C) for virgin asphalt and330 °F (166 °C) for polymer modified asphalt, and the asphalt cement at200 °F (95 °C). The specific gravity of water varies with temperature, however, at 4 degrees Celsius the specific gravity of water is 1. There is one exception: in "degree Celsius" (symbol °C) the unit "degree" is lower case but the modifier "Celsius" is capitalized. (Huge!!!) When mercury is used as a liquid for manometer, the vapor pressure of water at 20 °C (2. In the metric system, the density of water is 1 gram per cubic centimeter. Degrees into radians. collegeboard. Let us now apply this procedure to determine the range of 300-keV beta particles in air. What is the relationship between and secondary (a) current, (b) and (c) number of turns? 9. " okay i don't know how to answer that, can you help?. The density of a particular object or liquid is measured in g/cm 3. An insulin sensitivity? A ratio? A Correction Factor (sometimes called insulin sensitivity), is how much 1 unit of rapid acting insulin will generally lower your blood glucose over 2 to 4 hours when you are in a fasting or pre-meal state. In addition, explore hundreds of other calculators including topics such as finance, math, health, fitness, weather, and even transportation. Because the density of water at 4 degrees Celsius is 1,000 kg/m 3, that ratio is easy to find. An ideal gas is going to follow the ideal gas law (PV=nRT) very closely. It is this open solid structure that causes ice to be less dense than liquid water. 012 kg/m³ based on earlier laboratory work and applying IPTS-68. Subject: Re: The temperature at which pure nitrogen becomes heavier than air From: neilzero-ga on 24 Nov 2002 13:15 PST 8. 8 degrees Celcius per 1000 meters). This is the only right triangle that is an isosceles triangle. Some of the countries like Russian block follow standard temperature 20 deg C as compared to Commonwealth countries which have standard temperature 15 deg C. NOAA's Climate Prediction Center, which is part of the National Weather Service, declares the onset of an El Niño episode when the 3-month average sea-surface temperature departure exceeds 0. Moisture content and relative humidity can be calculated from these figures. 0 at the same temperature. The post gives a simple way to convert Density of petroleum products from ambient temperature ( say 15 +/-7 deg C ) to density at 15 Deg C, in line with ASTM table 53B, without using these table and in the field with simple calculation. 07891) Ethyl Alcohol 46. You can convert from one scale to the other using one of the following formulae: C = 5/9 (F − 32) or F = 9/5 C + 32 where C is degrees Celsius and F is degrees Fahrenheit. The dynamic viscosity of water is 8. 5 deg C), and it can give strange results in the quality-control checks, which are a crucial part of learning how to make biodiesel. Some people use 9. Nord and Robert C. Viscosity is important in volcanology. This is why age and gender specific equations need to be used for estimating body fat. Census Bureau released the remaining profiles and tables for the 2018 American Community Survey (ACS) 1-year estimates. 9°C, and the cold water at 0. Many engineering fields in the US, notably high-tech and US federal specifications (civil and military), also use the Kelvin and. Explain why weighing a solid object suspended in a fluid yields a smaller value than its "true" weight. 853 g by n, the number of moles, for your answer. Water density increases as the temperature gets colder. To act on dietary advice, consumers will need easy ways to compare different foods on their nutrient density, nutrient-to-energy ratio, or some other objective measure of nutritional value. Calculate the thermal expansion rate of water in water heaters and boilers, water density change with temperature increase, water pressure increase with temperature increase Amount of pressure increase caused by heating water in a water heater or heating boiler What happens to hot water water tank pressure when we increase both water temperature and incoming water pressure?. It does really help me to understand the way to calculate the density. The molecular weight continues to rise over an Al/Ti ratio of 2. On October 17th, the U. When the ice melts to liquid water, the structure collapses and the density of the liquid increases. On a baseline level, measurements fall into the categories of weight, area, volume, length and even temperature. There are 360 degrees in one Full Rotation (one complete circle around). In some calculation procedures, temperature is required in Kelvin (K), which can be obtained by adding 273. (450 mm), take readings from the center of equal areas that are no more than 6 in. Put about 15 milliliters of water in an empty, 12-ounce, aluminum, soft-drink can (one with "Crush" in its name is good) and heat it over a Bunsen burner or hot plate until a cloud of condensed water vapor escapes from the mouth of the can for about 20 seconds. In other words metals with the same mass will occupy less or more space depending on their density. The Nuclear Gauge is specifically designed to measure the moisture content and density of soils, aggregates, cement and lime treated materials, and to measure the density of Bituminous Concrete. 6 degree centigrade. For an absorption cycle, a ternary working pair LiBr–[BMIM]Cl(2. Hence is cannot be reliably be used as a measure of the molar quantity of that gas. Some people use 9. Lesson 1: Lab Fundamentals I Measurement: Volume and Temperature. The planet is expected to surpass the 3. The temperature of a gas is a measure of the kinetic energy of the molecules of the gas. This is the list of all compounds with density tables present in the full database - it was actual on May 4 th 2005, as the list is growing it may be already incomplete:. What statement(s) can you make about the accuracy and precision in their measurements? Find the value of each of the following to the correct number of significant digits. When we write 2 π, we mean 2 π radians, which is approximately 6. Symmetry of the underlying probability density plays an important role in statistical inference, since the sampling distribution of the sample mean for a given sample size is more likely to be approximately normal for a symmetric distribution than for an asymmetric one. lost is the percentage of alcohol in the finished wine. Density is measured as mass (g) per unit of volume (cm³). 8 m high, has a thickness of 6. 325 kN/m2, 101. The actual volume of the cube is 16. 08 m depth is G = 20 W m-2 and the temperatures 20 o C and 20. The mass of a substance can be measured directly using a balance; the volume of a liquid can also be measured directly using glassware, such as a graduated cylinder, a buret or a pipettete. This makes no fundamental difference, any more than the laws of physics change if you measure lengths in metres rather than inches. WHAT IS PRESSURE? Key to understanding scuba diving is the concept of pressure, and how it varies with depth. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled. Calcium Carbonate weighs 2. The ASTM D1298-12b Standard Test Method for Density, Relative Density, or API (American Petroleum Institute) Gravity of Crude Petroleum and Liquid Petroleum Products states that accurate determination of the API gravity, density or relative density (specific gravity) uses a standard temperature of 60 degrees F (15 degrees C). Its scale is adapted to liquids heavier or lighter than water. 0 degrees C. Screening individuals who are at low risk for osteoporosis is considered not medically necessary. Possibly less washout, again to optimize the inverted stall, but again not necessarily. If you're seeing this message, it means we're having trouble loading external resources on our website. The pressure of the atmosphere varies with time and location. We intuitively understand that pressure is some type of force, but how is it actually defined? Pressure is a force or weight per unit area. 919 g/cm3 at 20 °C, the vapor pressure of ethanol at 20 °C (5. The measurement has no units. The part below the line is a measure of the degree to which x and y vary separately. If you start out at 1000 feet, and climb to 6000 feet, that’s a 5000 foot difference (6000 – 1000 = 5000). There is a wide range of instruments designed to measure the specific gravity of a material. The proper method to read a hydrometer is illustrated in Figure 1. The metric system uses the Celsius scale to measure temperature. C to 40 deg. 001225 g/cm³, 0. Strict adherence to SI units would require changing directions such as "add 250 mL of water to a 1-L beaker" to "add 0. On average, the air temperature drops about 3. 20 correlation between a coach's record in their first eight games and the length of their tenure. Question: why do you apply the volume correction factor at 120 Celsius to 46. The table below gives the density (kg/L) and the corresponding concentration (% weight) of Sodium Hydroxide in water at different temperatures in degrees centigrade (°C). T 1 and T 2 do not need to be exactly 10. At 20 degrees C, water has a density of 1. Standard temperature is 68 degrees Fahrenheit, which is the same as 20 degrees Celsius, 293 degrees Kelvin and 528 degrees Rankin. Input a temperature and density within the range of the table to calculate for concentration or input concentration to calculate for density. Instead when gas volume is considered at a fixed reference temperature & pressure, its 'standard volume' is directly proportional to the molar quantity. Federal government websites always use a. , a liquid at room temperature). Conclusions PICC malposition is a frequent event. 08 m depth is G = 20 W m-2 and the temperatures 20 o C and 20. 90 × 10 −3 dyn·s/cm 2 or 0. 6 times as great can be measured if mercury is used. 56 o C, which is dimensionless, not to a density [kg/m 3 ]. First, the actual bone density is reported. We have some experience with temperature that we don't have with properties like viscosity and compressibility. m3/h usually correspond to the flow at pressure conditions (7 bar and 60°C), where the density of the air is 8. In geometry, an angle. The optical resolution is a measure of the microscope's ability to resolve the details present in the original specimen, and is related to the quality of the optics, sensor, and electronics in addition to the spatial density (the number of pixels in the digital image). Specific heat, heat of vaporization, and density of water. Here are two examples of a lab report. 25 hPa (abs) and 15°C, air has a density of approximately 1. The dynamic viscosity of water is 8. Linear position. Measuring density, for instance, aids in determining the composition of a given substance, while volume is a necessary component to using the gas laws. A mixture is prepared from 15. 99567 grams/cubic centimeter (source: CRC Handbook of Chemistry and Physics, ed. How is the volume at 15°C? In the Density vs temperature figure(°C), you se that the light blue line represent this fuel oil. In other words metals with the same mass will occupy less or more space depending on their density. Agreed with all Experts specially With Mr. C to 40 deg. Water has its maximum density of 1g/cm 3 at 4 degrees Celsius. 99 10 / )(15 )(3 ) 2. The temperature of a gas is a measure of the kinetic energy of the molecules of the gas. 11 What odds should a person give in favor of the following events? (a) A card chosen at random from a 52-card deck is an ace. 9718 as it is heated. Depending on the country or norm 60 °F or 15 °C are used as the related temperature. Most often the density of fuel oil is measured using a hydrometer. This is why the cSt centistokes numbers more accurately show oil viscosity. The normal boiling point of ethyl alcohol is 78. Soil Temperature Variations With Time and Depth Soil temperature fluctuates annually and daily affected mainly by variations in air temperature and solar radiation. Its scale is adapted to liquids heavier or lighter than water.