Gaseous State T...

The value of van der Waals’ constant ‘a’ for the gases O₂, N₂, NH₃ and CH₄ are 1.360, 1.390, 4.170 and 2.253 L² atm mol^–2 respectively. The gas which can most easily be liquefied is:

The density of neon will be highest at:

The rate of diffusion of methane at a given temperature is twice that of a gas X. The molecular weight of X is:

According to kinetics theory of gases, for a diatomic molecule:

At constant volume, for a fixed number of moles of a gas the pressure of the gas increases with rise of temperature due to:

Equal weights of ethane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by hydrogen is:

The ratio between the root mean square speed of H₂ at 50 K and that of O₂ at 800 K is:

The compressibility factor for an ideal gas is:

The critical temperature of water is higher than that of O₂ because the H₂O molecule has:

According to Graham’s law, at a given temperature the ratio of the rates of diffusionof gases A and B is given by (where, p and M are pressure and molecular weights of gases A and B respectively)