Van't Hoff law

The van-'t-Hoff law , van-'t-Hoff 'law or Van-'t-Hoff law (after Jacobus Henricus van' t Hoff ) describes the relationship between osmotic pressure , osmotic concentration and temperature for dilute solutions : ${\displaystyle c={\frac {n}{V}}}$

${\displaystyle \Pi =z\cdot {\frac {n}{V}}\cdot R\cdot T=z\cdot c\cdot R\cdot T.}$

It is

• z Number of particles into which the salt dissociates
• Π the osmotic pressure
• n is the amount of substance
• V is the volume of the solution
• R is the universal gas constant and
• T is the temperature in Kelvin

literature

• Peter W. Atkins, Julio de Paula: Physical chemistry. Wiley-VCH, 2005, ISBN 3-527-31546-2 .
• H. Sehon: Physical chemistry. Herder publishing house, Freiburg. i. Brsg., 1976, ISBN 3-451-16411-6 .
• Jacobus Henricus van 't Hoff: The laws of chemical equilibrium for the dilute, gaseous or dissolved state , Engelmann, Leipzig 1900, digital copies, 2nd edition 1915.
  • First in French: Une propriété générale de la matière diluée , in Kongl.Svenska vetenskapsakademiens Handlingar., Volume 21, No. 17, 1886 and in Archives Néerlandaises 1885