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KCET2013ChemistryThermodynamics (C)

The process is spontaneous at the given temperature, if

Options

  1. AH is +ve and S is -ve
  2. BH is -ve and S is +ve
  3. CH is +ve and S is +ve
  4. DH is +ve and S is equal to zero

Correct answer

B. H is -ve and S is +ve

Step-by-step solution

According to Gibbs' energy equation G= H-T S when H is negatie but T S is positive, i.e., energy factor as well as the randomness factor favour the process. The process will be highly spontaneous and G will be highly negative.

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