The equilibrium concentrations of the species in the reaction A + B C + D are 2, 3, 10 and 6 mol L–1, respectively at 300 K. G0 for the reaction is (R = 2 cal/mol K) (A) –137.26 cal (B) –1381.80 cal (

Question

The equilibrium concentrations of the species in the reaction A + B C + D are 2, 3, 10 and 6 mol L–1, respectively at 300 K. G0 for the reaction is (R = 2 cal/mol K)

(A) –137.26 cal
(B) –1381.80 cal
(C) –13.73 cal
(D) 1372.60 cal

Prashant Kotian · Accepted Answer

Correct answer: B. A + B C + D [A] = 2 mol L–1 [B] = 3 mol L–1 [C] = 10 mol L–1 [D] = 6 mol L–1 G0 = –2.303 RT log Keq = –2.303RT log [C][D] [A][B] = –2.303 × 2 × 300 × log 10 6 2 3 = –2.303 × 2 × 300 × log10 = –1381.8 cal 9

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