Which one of the following statements is wrong for an isobaric process? (a) The pressure of the system remains constant (b) There is change in volume, when work is done (c) Temperature of the system remains constant (d) Energy exchanged is used to do work to change internal energy

Answer: (c). Isobaric: P constant, W = PΔ V needs a volume change, and Q = Δ U + W. So (a), (b), (d) are correct. With P constant, V ∝ T, so temperature changes when volume changes. (c) is wrong. So the answer is (c).

Which one of the following statements is wrong for an isobaric… | MHT CET 2021 (23 Sep, Shift 1)

Q172MHT CET 2021 · 23 SEP · SHIFT 1Easy

Thermodynamic Processes

Which one of the following statements is wrong for an isobaric process?

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Answer: (c)

Isobaric: $P$ constant, $W = P\Delta V$ needs a volume change, and $Q = \Delta U + W$ . So (a), (b), (d) are correct.
With $P$ constant, $V \propto T$ , so temperature changes when volume changes. (c) is wrong.
So the answer is (c).

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