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Metallurgy — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryMetallurgy1 Mark
MCQ
Find the odd one out and give the reasons :
  • A
    $\Delta G=-v e$
  • B
    $\Delta H =- ve$
  • C
    $\Delta S=+v e$
  • ✓
    $\Delta S=-$ ve
✓

Answer

Correct option: D.
$\Delta S=-$ ve
∆S = -ve
Reason : ∆G=-ve, ∆H=-ve, ∆S=+ve are the conditions for spontaneous reaction, ∆S = -ve is condition for non-spontaneous process.

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