The total pressure of a mixture of non-reacting gases $X$ $(0.6 \ g)$ and $Y$ $(0.45 \ g)$ in a vessel is $740 \ mm$ of $Hg$. The partial pressure of the gas $X$ is $........ \ mm$ of $Hg$. (Nearest Integer) (Given: molar mass $X = 20 \ g \ mol^{-1}$ and $Y = 45 \ g \ mol^{-1}$)

$A$ 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 $\,g$)

Fill in the blanks:
$(1)$ The temperature at which gases possess zero volume is called ........... .
$(2)$ In a mixture of gases,the pressure exerted by each individual gas is called .......... .
$(3)$ The pressure exerted by water vapor is known as ..... .
$(4)$ Thermal energy is directly proportional to the ..... of the substance.

The ratio $\gamma$ for inert gases is

What is the ratio of the rate of diffusion of oxygen $(O_2)$ to hydrogen $(H_2)$?

$A$ gaseous mixture contains $65\%$ $N_2$,$15\%$ $O_2$,and $20\%$ $CO_2$ by volume at a total pressure of $760 \, mm \, Hg$. Calculate the partial pressure of each gas in $mm \, Hg$.