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COMEDK2019ChemistryThermodynamics (C)

A reaction is spontaneous at all temperature, when

Options

  1. AH is -ve and S is + ve
  2. BH is + ve and S is - ve
  3. CBoth H and S are - ve
  4. DBoth H and S are +v e

Correct answer

A. H is -ve and S is + ve

Step-by-step solution

For a reaction to be spontaneous change in Gibbs free energy should be negative. i.e. G= H-T S 0 So, H=- ve and S=+ ve

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