7. Which of the following reactions is associated with the most positive change in entropy?
(A)C(s, graphite) + H2O(g) -＞ CO(g) + H2(g)
(B) 2 CH4(g) + O2(g) -＞ 2 CH3OH(l)
(C) 2 H2O2(l) + N2H4(l)-＞ N2(g) + 4 H2O(g)
(D) 2 CO(g) + O2(g) -＞ 2 CO2(g)
(E)N2(g) + O2(g) -＞ 2 NO(g)