The figure depicts the effusion of gas molecules through a small hole in a container.
Calculate the ratio of effusion of the gases oxygen and hydrogen. Assume that the two gases are in the same container having a tiny hole in it.
First, we have to consider the fact that according to Graham's law, the rate of effusion is inversely proportional to the square of molecular weight of the gas, which is effused. This can be represented as follows. Keep in mind that both gases are diatomic.
So the ratio of the rates of effusion of hydrogen and oxygen is 4 : 1.
We should think about the implications of this ratio. This means that the hydrogen molecules will effuse four times faster than the oxygen molecules.