The following graph represents the $T$ - $V$ curves of an ideal gas (where $T$ is the temperature an

Question

The following graph represents the $T$ - $V$ curves of an ideal gas (where $T$ is the temperature and $V$ the volume) at three pressures $P_1, P_2$ and $P_3$ compared with those of Charles's law represented as dotted lines. Then the correct relation is

Professor PC Thomas Classes · Answer

(d) : According to Charle's law, when the pressure of a gas is kept constant, the volume of the gas is directly proportional to the temperature of the gas. i.e., $V \propto T \Rightarrow \frac{V}{T}=$ Constant Therefore, the plot of $V$ vs $T$ is a straight line passing through the origin. So, $P_1>P_2>P_3$.