Which physical property decreases with an increase in intermolecular forces?

The rate of diffusion of a gas is directly proportional to ....

Deep sea divers use a mixture of which gases for respiration?

The $O_2$ gas is collected over water at $400 \ K$ temperature in a $2 \ L$ vessel. If the total pressure of the mixture is $33.26 \ bar$ and the pressure of dry $O_2$ gas is $32.20 \ bar$,find the vapour pressure of water under the same conditions.

$3.2 \, g$ of oxygen gas diffuses in $10 \, minute$. Under similar conditions,$2.8 \, g$ of nitrogen gas will diffuse in ............ $minute$.

The ratio of densities of two gases is $1:16$. What will be the ratio of their rates of diffusion?