Q 11-12-082JEE MainJEE Main 2023 (1 Feb, Shift 2)Easy
For three low density gases $A$, $B$, $C$ pressure versus temperature graphs are plotted while keeping them at constant volume, as shown in the figure. The temperature corresponding to the point $K$ is
Answer: (A) $-273^\circ\text{C}$
At constant volume $P\propto T$ (kelvin), so every line extrapolates to $P=0$ at absolute zero, $-273^\circ\text{C}$.
Solution by Sreeraj P, M.Sc Physics