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Question 31062
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Kinetic Theory and Thermodynamics: First Law MCQ

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First LawEasyQuestion 31062

Question

Heat supplied to system is 200 J and work done by system is 80 J. Change in internal energy is:
  1. A
    280 J
  2. B
    120 J
    Correct
  3. C
    80 J
  4. D
    200 J

Correct answer

120 J

Explanation

ΔU = Q − W = 200 − 80 = 120 J.

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