Select the WRONG statement from the following. For an isothermal process (a) Energy exchanged is used to do work (b) Perfect thermal equilibrium with environment (c) Equation of state PV is not constant. (d) No change internal energy.

Answer: (c). Isothermal: T constant, so Δ U = 0 and all heat exchanged goes into work; the system stays in thermal equilibrium with the surroundings. (a), (b), (d) are correct. From PV = nRT with T constant, PV is constant, so (c) is wrong. So the answer is (c).

Select the WRONG statement from the following. For an isothermal… | MHT CET 2023 (12 May, Shift 2)

Q134MHT CET 2023 · 12 MAY · SHIFT 2Easy

Thermodynamic Processes

Select the WRONG statement from the following. For an isothermal process

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Answer: (c)

Isothermal: $T$ constant, so $\Delta U = 0$ and all heat exchanged goes into work; the system stays in thermal equilibrium with the surroundings. (a), (b), (d) are correct.
From $PV = nRT$ with $T$ constant, $PV$ is constant, so (c) is wrong.
So the answer is (c).

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Thermodynamic Processes question from MHT CET 2023 (12 May, Shift 2)

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