The correct option(s) about entropy (S) is(are) [R = gas constant, F = Faraday constant, T = Temperature]

Options

A. For the reaction,`M(s) +2H^(+) (aq) to H_(2)(g) +M^(2+) (aq),` if `(dE_("cell"))/(dT)= R/F` , then the entropy change of the reaction is R (assume that entropy and internal energy changes are temperature independent).
B. The cell reaction Pt(s) `|H_(2)(g, 1 "bar ") |H^(+) (aq, 0.01 M)"||" H^(+) (aq,0.1M)|H_(2)(g,1 bar)|Pt (s) ` is an entropy driven process .
C. For racemization of an optically active compound,`DeltaS gt 0`
D. `DeltaS gt 0` for `[Ni(H_(2)O)_(6)]^(2+) +3 en to [Ni(en)_(3)]^(2+) +6H_(2)O` (where en = ethylenediamine ).