NEET UG PHYSICS MCQ: THERMODYNAMICS

1 Medium

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Analyzing +4 | -1

100 \mathrm{~mol}

of an ideal gas is heated from

10^{\circ}

20^{\circ} \mathrm{C}

keeping its (i) volume constant (ii) pressure constant. Let

\Delta U_a

and

\Delta U_b

denote the change in the internal energy of the gas due to process (i) and (ii), respectively. Then, which of the following shall be true?

View answer and explanation

Correct option: B

\Delta U_a > \Delta U_b

Option A is correct because the internal energy change depends only on the temperature change for an ideal gas, and the temperature change is the same in both processes, but work done is different.

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