Question

question 8.1
With a pressure gauge you measure the difference in pressure between the gas in a gas tank and the atmospheric pressure (so you measure the overpressure!).
A gas tank is filled with CH4 gas (molar mass: 16 g / mol) and has a volume of 144 liters. 
The pressure read on the pressure gauge is 3.7 bar at a temperature of -21 ° C. 
The atmospheric pressure is 1001 hPa. 

The mass density of the gas is then ?

Select the correct answer from the following list:

a) 3590. g/m³

b) 792.7 g/m³

c) -43.08 kg/m³

d) 2.833 kg/m³

Answer 1

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