Gas Laws — MCQ Practice

A gas occupies a volume of $2.5,\text{L}$ at $27^circ C$ and $1,\text{atm}$ pressure. What will be its volume at $127^circ C$ and $2,\text{atm}$ pressure?

Which of the following graphs correctly represents Boyle's Law (at constant temperature and number of moles)?

A $10,\text{L}$ container holds a mixture of $0.5,\text{mol}$ of $N_2$ and $0.3,\text{mol}$ of $O_2$ at $300,\text{K}$. What is the total pressure of the gas mixture? (Given: $R = 0.0821,\text{L atm mol}^{-1}\text{K}^{-1}$)

Under what conditions do real gases behave most like ideal gases?

Two gases, $CH_4$ (Molar mass = $16,\text{g/mol}$) and $SO_2$ (Molar mass = $64,\text{g/mol}$), are allowed to effuse through a small hole. If $CH_4$ effuses at a rate of $X,\text{mol/s}$, what is the rate of effusion of $SO_2$?

A gas is collected over water at $25^circ C$. The total pressure inside the container is $750,\text{mmHg}$. If the vapor pressure of water at $25^circ C$ is $23.8,\text{mmHg}$, what is the partial pressure of the dry gas?