van't Hoff equation

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van't Hoff e·qua·tion

(vahnt hof),
1. equation for osmotic pressure of dilute solutions.
2. for any reaction, d(ln Keq)/d(1/T) equals -ΔH/R where Keq is the equilibrium constant, T the absolute temperature, R the universal gas constant, and ΔH the change in enthalpy; thus, plotting ln Keq vs. 1/T allows the determination of ΔHo and ΔSo, where ΔHo and ΔSo are the standard changes in enthalpy and entropy, respectively.
[Jacobus H. van't Hoff]

van't Hoff e·qua·tion

(vahnt hof ĕ-kwā'zhŭn)
1. Calculation for osmotic pressure of dilute solutions.
See also: van't Hoff law
2. For any reaction, d(ln Keq/d(1/T) equals -ΔH/R,where Keq is the equilibrium constant, T the absolute temperature, R the universal gas constant, and ΔH the change in enthalpy; thus, plotting ln Keqvs. 1/T allows the determination of ΔH.
[Jacobus H. van't Hoff]

van't Hoff,

Jacobus H., Dutch chemist and Nobel laureate, 1852-1911.
Le Bel-van-t Hoff rule - see under Le Bel
van't Hoff equation - equation for osmotic pressure of dilute solutions for any reaction.
van't Hoff law - in stereochemistry, all optically active substances have one or more multivalent atoms united to four different atoms or radicals so as to form in space an unsymmetrical arrangement.
van't Hoff theory - that substances in dilute solution obey the gas laws.