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NEET Chemistry · Hard

Thermodynamics: Path vs state MCQ

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Path vs stateHardQuestion 23122

Question

For a cyclic process, which pair is possible?

  1. A
    ΔU=0\Delta U = 0 but q and w non-zero
    Correct
  2. B
    ΔU≠0\Delta U \ne 0 and q = 0
  3. C
    ΔH≠0\Delta H \ne 0 and no state change
  4. D
    All state functions change

Correct answer

ΔU=0\Delta U = 0 but q and w non-zero

Explanation

State returns to start, though heat and work may be exchanged.

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