What is the ratio of the universal gas constant $(R)$ to the Avogadro number $(N_A)$?

$10 \ g$ of a gas at $STP$ occupies a volume of $2 \ L$. At what temperature will the volume be doubled,if pressure and amount of the gas remain constant?

$A$ cylinder contains $10 \, kg$ of gas at a pressure of $10^7 \, N/m^2$. What amount of gas in $kg$ must be removed so that the final pressure becomes $2.5 \times 10^6 \, N/m^2$?

During an experiment, an ideal gas is found to obey an additional law $VP^2 = \text{constant}$. The gas is initially at temperature $T$ and volume $V$. What will be the temperature of the gas when it expands to a volume $2V$?

If $\alpha$ and $\beta$ are the volume and pressure coefficients respectively of an ideal gas, then

The relationship between pressure and the density of a gas expressed by Boyle's law,$P = K\rho$,holds true: