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JEE Main 2023 (1 Feb, Shift 2) · Gas Laws & Ideal Gas Equation

Gas Laws & Ideal Gas Equation question from JEE Main 2023 (1 Feb, Shift 2)

Q43JEE Main 2023 · 1 FEB · SHIFT 2Easy

Gas Laws & Ideal Gas Equation

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 ' $\text{K}$ ' is:

Show answer and solution

Answer: (a)

At constant volume, $P \propto T$ (absolute), so each $P$ – $t$ line reaches $P = 0$ at absolute zero.
All lines meet the temperature axis at K, so K is absolute zero.
So the answer is (a) $-273^\circ$ C.

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