ThermodynamicsHard

Question

In which of the following reactions, standard reaction entropy change (ᐃSo) is positive and standardGibb′s energy change (ᐃGo) decreases sharply with increasing temperature?

Options

A.C graphite + O2(g) → CO2(g)
B.C graphite + O2(g) → CO(g)
C.CO(g) + O2(g) → CO2(g)
D.Mg(s) + O2(g) → MgO(s)

Solution

C(g) + O2(g) → CO(g)
ᐃSo = + ve

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