Select correct statement: (a) The decomposition of an oxide into oxygen and metal vapour entropy...

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Entropy (2013)
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Select correct statement:
(a) The decomposition of an oxide into oxygen and metal vapour entropy increases.
(b) Decomposition of an oxide is an endothermic change.
(c) To make \( \Delta G^{\circ} \) negative, temperature should be high enough so that \( T \Delta S^{\circ}\Delta H^{\circ} \).
(d) All are correct statements.
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