InterviewSolution
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InterviewSolution
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A porcess is nonspontaneous at evey temperature if (i) `Delta H gt 0, Delta S = 0` (ii)`Delta H lt 0, Delta S gt 0` (iii) `Delta H gt 0, Delta S lt 0` (iv) `Delta H = 0, Delta S lt 0`A. (i),(ii),(iii)B. (ii),(iii),(iv)C. (i),(ii),(iii),(iv)D. (i),(iii),(iv) |
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Answer» Correct Answer - D According to thermodunamics, `Delta G = Delta - T Delta S` A reaction is nonspontaneous at every temperature if `Delta G` is positive at all temperature. This happens when (i) `Delta H` is positive and `Delta S` is negative, (ii) `Delta H gt 0` and `Delta S = 0` i.e., energy factor oppose while entropy factor has no rol to play and (iii) `Delta H = 0` and `Delta S` is negative `(lt 0)`, i.e., energy has no while entropy factor oppose. |
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