JEE MAIN - Physics (2022 - 25th June Evening Shift - No. 24)
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.
Answer
250
Explanation
$$PV = nRT$$
So $${{dP} \over P} \times 100 = {{dT} \over T} \times 100$$
$$0.4 = {1 \over T} \times 100$$
$$ \Rightarrow T = 250\,K$$
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