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MHT CET20249 May 2024Morning ShiftChemistryThermodynamics (C)Actual

What is change in internal energy of the system when work done by the system is 150 J and system release 300 J of heat?

Options

  1. A+450 J
  2. B-450 J
  3. C+300 J
  4. D-150 J

Correct answer

B. -450 J

Step-by-step solution

According to the first law of thermodynamics, U = Q + W =-300 ~J -150 ~J =-450 ~J .

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