What does the first law of thermodynamics state?

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

The first law of thermodynamics establishes that heat and work are interchangeable forms of energy, meaning energy can be transformed from heat to work and vice versa, but the total energy remains conserved.

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