The reaction in which \(\Delta \text H\gt\Delta \text U\) is
(A) \(\text N_{2(g)}+\text O_{2(g)}\to 2\text {NO}_{(g)}\)
(B) \(\text {CaCO}_{3(s)}\to\text {CaO}_{(s)}+\text {CO}_{2(g)}\)
(C) \(\text N_{2(g)}+3\text H_{2(g)}\to 2\text {NH}_{3(g)}\)
(D) \(\text {CH}_{4(g)}+2\text O_{2(g)}\to \text {CO}_{2(g)}+2\text H_2\text O_{(\text l)}\)