States of Matte...

At constant volume and temperature conditions, the rate of diffusion D_A and D_B of gases A and B having densities ρ_A and ρ_B are related by the expression,

Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mole litre^-1?
(R = 0.082 litre atm mol^-1deg^-1)

The ratio among most probable velocity, mean velocity and root mean square velocity is given by

The root mean square speeds at STP for the gases H₂, N₂ , O₂ and HBr are in the order

What is the relationship between the average velocity (v), root mean square velocity (u) and most probable velocity (a)?

The temperature of the gas is raised from 27ºC to 927ºC, the root mean square velocity is

If three unreactive gases having partial pressures P_A , P_B, P_C and their moles are 1, 2, and 3 respectively then their total pressure will be:

According to Grahman’s law at a given temperature, the ratio of the rates of diffusion r_A/r_B of gases A and B is given by
(Where P and M are the pressures and molecular weights of gases A and B respectively)

The compressibility of a gas is less than unity at STP. Therefore