If the ratio of the rates of diffusion of two gases A and B is 4:1 the ratio of their density is

If the ratio of the rates of diffusion of two gases A and B is 4 : 1, then what is the ratio of densities of B and A ?

The ratio of velocities of diffusion of gases A and B is 1 : 4 . If the ratio of their masses present in the mixture is 2 : 3 , calculate the ratio of their mole fractions.

Under the same conditions the rates of diffusion of two gases are in the ratio 1:4. The ratio of their vapour densities is

If the ratio of rates of diffusion of gases are 6:4, then find the ratio of their molecular mass.

At constant temperature and pressure, the rates of diffusion of two gases A and B are in the ratio of 1:2 . In a mixture of A and B gases if the mass ratio of A and B be 2:1, the find the mole fraction ratio of A and B in the mixture?

The ratio of rates of diffusion of gases A and B is 1 : 0.707. IF the molecular weight of B is 32, the molecular weight of A is