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MHT CET202311 May 2023Morning ShiftChemistryThermodynamics (C)Actual

What is the value of increase in internal energy when system does 8 ~J of work on surrounding by supplying 40 ~J of heat to it?

Options

  1. A23 ~J
  2. B32 ~J
  3. C40 ~J
  4. D48 ~J

Correct answer

B. 32 ~J

Step-by-step solution

Heat (Q)=+40 ~J Work (W)=-8 ~J According to first law of thermodynamics, aligned & U = Q + W & U =(+40-8) J U =+32 ~J aligned

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