The rate of effusion of a gas is directly proportional to.....

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

When $CH_4$ gas is collected over water,the total pressure is $735 \ torr$ and the temperature is $292 \ ^\circ C$. If the vapor pressure of water at $292 \ ^\circ C$ is $30 \ torr$,then the pressure exerted by the dry methane gas will be .......... $torr$.

What is the value of $1 \, bar$ in Pascals? What does this value represent?

Which of the following statements is correct?

$A$ certain volume of oxygen gas diffuses through a porous pot in $20 \ s$. If the same volume of another gas $(X)$ diffuses in $Y \ s$, then $(X)$ and $Y$ respectively are: