Question

A diatomic gas of molecular mass. 40g/mol is in container and moving

Answer 1

This question is incomplete but I would like to let you know that it is likely to be testing the relative rate of diffusion.

So in the calculation for the relative rate of diffusion, there is one important factor you need to put in the back of your mind.

When the volume is the same consider using direct proportionality and when the volume is different use inverse proportionality.