The temperature at which the vapour pressure of a liquid becomes equal to the atmospheric pressure is known as:

If the rate of diffusion of gas $A$ is $5$ times that of gas $B$,what will be the ratio of the density of $A$ to the density of $B$?

Write the formula for partial pressure.

On a certain day,the humidity in the atmosphere is $1\%$. If the barometer reads $760 \ mm \ of \ Hg$,what will be the pressure of the dry gas in $mm \ of \ Hg$?

$A$ gaseous mixture of $3$ gases $A$, $B$ and $C$ has a pressure of $10 \,atm$. The total number of moles is $10$. If the partial pressures of gases $A$ and $B$ are $3 \,atm$ and $1 \,atm$ respectively, and the molar mass of gas $C$ is $2 \,g/mol$, calculate the weight of $C$ in the mixture. (in $\,g$)

The ratio of $\frac{C_p}{C_v}$ for inert gases is