questions on diffusion of gases

The rates of diffusion of gases A and B of molecular mass 36 and 64 are in the ratio

The rates of diffusion of gases A and B of molecular weights 100 and 81 respectvely are in the ratio of

The rates of diffusion of gases A and B of molecular weight 36and 64 are in the ratio

(a) Arrange solids, liquids and gases in increasing order of the following properties of matter rigidity (ii) diffusion (iii) compressibility. (b) Write one example from your daily life which is based on diffusion of gases.

We know that gases which donot react chemically intermix irrepective of their nature. This is known as diffusion. The law of gravitation does not apply to diffusion which means that lighter gases can more downward while the hevier ones can move upwards. (i) State Graham's Law of diffusion. (ii)Give Its mathemartical form. (iii) What is the value associated with the phenomenon of diffusion of gases?

The correct formula for rates of diffusion of two gases is

Which of the following factor can affect the rate of diffusion of gases ?

Name an animal which depends on simple diffusion of gases for breathing