0
Using Ideal Gas Law: PV=mRT where P is pressure kPa, V is volume in m3, R is air gas constant in KJ/(kg*K), T is temperature in Kelvin. For 20 deg Celsius (= 293K) m=(PV)/(RT)=(101.325[kPa]*1[m3])/(0.287[kPa*m3/kg*K]*293[K]) m=1.205kg For 20 deg Fahrenheit (= 266.33K) m=(PV)/(RT)=(101.325[kPa]*1[m3])/(0.287[kPa*m3/kg*K]*266.33[K]) m=1.326kg
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
How much heat is contained in 1 cubic meter of air?
That depends on the mass, pressure, and temperature of the air in the cubic meter.
What is the mass of a cubic meter of air at ntp?
1300
When does a cubic meter of air have less mass?
When it is at a lower pressure or a higher temperature.
How much does 1 cubic meter weight?
Depends. A cubic meter of WHAT? If it's a cubic meter of lead, it would weigh quite a bit. A cubic meter of air, not so much. The standard substance that is used to relate metric measurements to each other is water. The "gram" was defined as the mass (not weight, but similar) of one cubic centimeter of water at normal temperature. There are 1 million cubic centimeters in a cubic meter, so a cubic meter of water would have a mass of 1 million grams, or 1,000 kilograms, or 1 metric ton. To obtain the mass of 1 cubic meter of some other substances, simply multiply the specific gravity of the substance by the mass of a cubic meter of water.
Why is the term a cubic meter of air unsatisfactory?
Because it doesn't say neither the temperature, the pressure or the humidity of the air. You need to know both the temperature, the pressure and the humidity of the air to say anything about the mass of one cubic meter of air.
What is the waight of a cubic meter?
Depends on what the cubic meter is made of. A cubic meter of air will be something entirely different from a cubic of water.
A cubic meter of air has less mass at the top or bottm of the mountain?
At the top, because the pressure there is lower.
How much normal meter cube of air is 1000 meter cube of air?
The grammar here is confusing. I'll take this as "Compare One cubic meter of air and 1000 cubic meter of air?" 1000 cubic meters is 1000 times more volume than 1 cubic meter
If you had a cubic meter of air at 20 degrees C that was holding 3 grams of water what would the relative humidity be?
25%
Does a cubic meter of air have less mass higher up?
Yes. The density of the air (and thus mass per unit volume) deceases all the way to zero (in space) as the altitude increases.
How many molecules are in one cubic meter of air?
That depends on the pressure and temperature of the air in the cubic meter. Any time you change the pressure or the temperature of a gas, you change the number of molecules in one cubic meter of it.
The volume of vessel is 2 cubic meter that contain 4 cubic meter of air how to find the pressure in side the vessel?
PV=nRT P is the pressure that you are looking for V is the volume of the vessel (74.48ft3) R is a constant. look it up. (10.7316 ft3 psi/R lbmol) 4 cubic meter of air is the amount of moles that you have (n) (.026853 cubic meters is 0.0026412Lbmole) this is 0.393430901 lbmol I will assume the air at 120 degrees F that is = 579.7 degrees Rankin P= (.39)(10.7316)(579.7)/74.48ft3 P= 32.57 psi
