20. The enthalpy change for a reaction can be obtained by:
(A) slope from plot of lnKeq vs. T
(B) slope from plot of ln(1/Keq) vs. T
(C)slope from plot of ln(1/Keq) vs. 1/T
(D) slope from plot of lnKeq vs. 1/T
(E) -RT(lnKeq)

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