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

List the different units of gas pressure.

$A$ closed container contains a mixture of non-reacting gases $A$ and $B$. The partial pressures of $A$ and $B$ are $4.5 \ bar$ and $5.5 \ bar$ respectively. Find the mole fractions of $A$ and $B$ respectively.

In a closed vessel at $25 \, ^oC$ temperature,$4 \, mole$ $O_2$,$3 \, mole$ $Cl_2$,and $3 \, mole$ $N_2$ are mixed,and the total pressure is found to be $50 \, bar$. Find the partial pressure of each gas.

$A$ closed vessel contains an equal number of nitrogen and oxygen molecules at a pressure of $P \ mm$. If nitrogen is removed from the system,then the pressure will be

$A$ mixture of hydrogen and oxygen contains $40 \%$ hydrogen by mass when the total pressure is $2.2 \, bar$. The partial pressure of hydrogen is $bar$. (Nearest Integer)