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Activity 3

Total questions: 10

Worksheet time: 13mins

Name
Class
Date
1.

"For a given weight of gas, at a given temperature, the volume varies inversely as the pressure"

What law is best described the statement?

a)

Charles's Law

b)

Boyle's Law

c)

Avogadro's Law

2.

Which of the following statement describes the Charles' Law?

a)

Under the same conditions of temperature and pressure, equal volumes of all perfect gases contain the same number of molecules

b)

For a given weight of gas, at a given temperature, the volume varies inversely as the pressure

c)

For a given weight of gas, at a given pressure, the volume varies directly as the absolute temperature

3.

Select which one is the ideal gas law?

a)

PV=nRT

b)

PT=nRV

4.

A gas cylinder contains propane with a molecular weight of 44.1 lblb.mol\frac{lb}{lb.mol} at 1000 psia and 70 °F\degree F . If the cylinder has a volume of 3 cu-ft, calculate the mass of propane in the cylinder?

a)

8.46 lb

b)

23.26 lb

c)

20.12 lb

d)

32.24 lb

5.

Which of the formula is for the density of perfect gas?

a)

ρ=RT(MW)P\rho=\frac{RT}{\left(MW\right)P}

b)

ρ=(MW)PRT\rho=\frac{\left(MW\right)P}{RT}

6.

A gas mixture contains 60 wt% of methane. What is the weight of methane if the total gas mixture is 100 lb?

a)

30 lb

b)

40 lb

c)

59 lb

d)

60 lb

7.

A gas mixture contains 77.86 mol % of methane. What is the weight of methane in 1 mol basis if the methane molecular weight is 16 lblb.mol\frac{lb}{lb.mol} ?

a)

1 lb

b)

2.45 lb

c)

16 lb

d)

12.46 lb

8.

From chart estimate the critical pressure (Pc) and critical temperature (Tc) of gas with a specific gravity of 0.6?

a)

Pc = 675 psia

Tc = 360 °R\degree R

b)

Pc = 600 psia

Tc = 300 °R\degree R

c)

Pc = 700 psia

Tc = 400 °R\degree R

d)

Pc = 550 psia

Tc = 450 °R\degree R

9.

If Pc = 675 psia and Tc = 360 °R\degree R , determine the pseudo reduced pressure (Ppr) and temperature (Tpr) for gas at 2500 psia and 560 °R\degree R

a)

Ppr = 3.00

Tpr = 1.32

b)

Ppr = 3.70

Tpr = 1.56

c)

Ppr = 2.56

Tpr = 1.46

d)

Ppr = 4.20

Tpr = 2.56

10.

If the gases' Ppr = 3.70 and Tpr = 1.56, determine the compressibility factor, z of the gas

a)

z = 0.85

b)

z = 0.8

c)

z = 0.9

d)

z = 0.87