Which of the following processes is considered an irreversible process?

Thermodynamics MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Thermodynamicsmechanical-engineering-mcqs › thermodynamics
Published
26 Jan 2019
Last updated
28 May 2026

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Explanation

Isothermal and adiabatic processes can be reversible under ideal conditions, whereas throttling is inherently an irreversible process due to the sudden pressure drop and associated entropy increase.

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