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MHT CET202311 May 2023Morning ShiftChemistryThermodynamics (C)Actual

Which among the following is TRUE for isobaric process?

Options

  1. AU =0
  2. B- U =- W
  3. CU = Q
  4. DQ _ P = U + P _ ext V

Correct answer

D. Q _ P = U + P _ ext V

Step-by-step solution

When chemical reactions are carried out in the open containers under constant atmospheric pressure (isobaric process), V 0 . W =- P _ ext V The mathematical expression of first law of thermodynamics is U = Q + W . array ll & U=Q_P-P_ ext V & Q_P= U+P_ ext V array

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