Four rubber tubes are filled with $H_2, O_2, N_2$,and $He$ respectively. Which of these tubes will deflate first?

Isochores are drawn at

Which factors can cause a change in the physical states of matter?

$A$ gaseous mixture was prepared by taking equal moles of $CO$ and $N_2$. If the total pressure of the mixture was found to be $1 \ atm$,the partial pressure of the nitrogen $(N_2)$ in the mixture is $...$ $atm$.

$A$ 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 rates of diffusion of oxygen and an unknown gas is $1:4$. The unknown gas is