States Of Matter Mock Tests

The van der Waals constants for NH3, CO2, O2, and N2 are: NH3(a=4.17, b=0.0371), CO2(a=3.59, b=0.0427), O2(a=1.36, b=0.0318), N2(a=1.39, b=0.0391). Which gas has the highest critical temperature?

Under identical conditions, 120 mL of SO₂ gas diffuses in 60 seconds. How long will 60 mL of O₂ take to diffuse under the same conditions? (Molar mass: SO₂ = 64 g/mol, O₂ = 32 g/mol)

At high pressure, the compressibility factor Z of a real gas is given by (neglecting the intermolecular attraction term):

Two identical cylinders A and B contain 2 moles of O₂ and 2 moles of CH₄ respectively at the same temperature and pressure. If the gas from cylinder B escapes twice as fast as from A, the ratio of the rate of diffusion of CH₄ to O₂ is (assuming ideal behaviour):

Which of the following statements about the viscosity of liquids is CORRECT?

The critical temperature of a gas is the temperature above which:

The unit of gas constant R is:

At high pressure, the compressibility factor Z of a real gas is approximately given by (where B is the second virial coefficient related to intermolecular attractions):