NEET Chemistry · Medium

Thermodynamics: Internal energy MCQ

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Internal energyMediumQuestion 23081

Question

At constant volume, release of 25 kJ heat implies ΔU\Delta U is:

  1. A
    -25 kJ
    Correct
  2. B
    +25 kJ
  3. C
    0
  4. D
    Cannot say

Correct answer

-25 kJ

Explanation

At constant volume, qv=ΔUq_v = \Delta U.