The gas law $\frac{PV}{T} = \text{constant}$ is true for

$A$ perfect gas at $27^{\circ}C$ is heated at constant pressure so as to triple its volume. The temperature of the gas will be ...... $^{\circ}C$.

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

Absolute zero $(0\, K)$ is that temperature at which

The pressure $P$,volume $V$,and temperature $T$ of a gas in jar $A$ are given. Another gas in jar $B$ has pressure $2P$,volume $V/4$,and temperature $2T$. The ratio of the number of molecules in jar $A$ to jar $B$ is:

When a gas filled in a closed vessel is heated by raising the temperature by $1^{\circ} C$,its pressure increases by $0.4 \%$. The initial temperature of the gas is ..........$K$.