JEE Physics · Easy

Kinetic Theory and Thermodynamics: Adiabatic Work MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Adiabatic WorkEasyQuestion 31042

Question

Work done in an adiabatic process (Q = 0) equals:
  1. A
    ΔU
  2. B
    −ΔU
    Correct
  3. C
    ΔQ
  4. D
    CpΔT

Correct answer

−ΔU

Explanation

First law: Q = ΔU + W. With Q = 0: W = −ΔU. Work done equals decrease in internal energy.