27. For which of the following processes would ∆S° be expected to be most positive? 
(A) NH3(g) + HCl(g) → NH4Cl(g)
(B) 2NH4NO3(s) → 2N2(g) + O2(g) + 4H2O(g)
(C) H2O(l) → H2O(s)
(D) N2O4(g) → 2NO2(g)
(E) O2(g) + 2H2(g) → 2H2O(g)