What is the ratio of diffusion rate of oxygen to hydrogen?

Calculate the ratio of the rate of diffusion of oxygen to the rate of diffusion of hydrogen at constant temperature and pressure.

The rate of diffusion of hydrogen gas is

The rate of diffusion of Hydrogen is about

The rate of diffusion of hydrogen is about:

The rate of diffusion of hydrogen is about:

Oxygen and hydrogen are at the same temperature T. What is the ratio of kinetic energies of oxygen molecule and hydrogen molecule when oxygen is 16 times heavier than hydrogen ?

Find the ratio of rates of diffusion of hydrogen and oxygen.