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In which of the following reactions, sta...

In which of the following reactions, standard reaction entropy changes `(DeltaS^@)` is positive and standard Gibb’s energy change `(DeltaG^@)` decreases sharply with increasing temperature?

A

`C "(graphite)"` + `1/2 O_2(g)` `rarr` `CO(g)`

B

`CO(g) + 1/2 O_2(g) rarr CO_2(g)`

C

`Mg(s) +1/2 O_2(g)rarrMgO(s)`

D

`1/2C" (graphite)" +1/2 O_2(g) rarr 1/2 CO_2(g)`

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The correct Answer is:
A
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