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MHT CET20239 May 2023Morning ShiftChemistryThermodynamics (C)Actual

An ideal gas expands by performing 200 ~J of work, during this internal energy increases by 432 ~J . What is enthalpy change?

Options

  1. A200 J
  2. B232 J
  3. C432 J
  4. D632 J

Correct answer

D. 632 J

Step-by-step solution

Assuming constant pressure, H = U + P _ ext V = U - W Work done ( W )=-200 ~J (for expansion of a gas) aligned & U =+432 ~J & H = U - W =+432-(-200)=+632 ~J aligned

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