|van't Hoff's equation||medical dictionary|
See: van't Hoff's law.
For any reaction, d(ln Keq/d(1/T) equals -dH/R where Keq is the equilibrium constant, T the absolute temperature, R is the universal gas constant, and dH is the change in enthalpy; thus, plotting ln Keq vs. 1/T allows the determination of dH.
(05 Mar 2000)
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