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MHT CET Medical202622 April 2026Evening ShiftChemistryThermodynamics (C)Actual

When is the reaction spontaneous?

Options

  1. AG = 2.0
  2. BG < 0
  3. CG = 0
  4. DG = 1

Correct answer

B. G < 0

Step-by-step solution

For a process to be spontaneous at constant temperature and pressure, the change in Gibbs free energy ( G ) must be negative. If G If G = 0 , the reaction is at equilibrium. If G > 0 , the reaction is non-spontaneous. Answer: G < 0

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