The Van 't Hoff equation relates the change in the equilibrium constant, K eq, of a chemical reaction to the change in temperature, T, given the standard enthalpy change, Δ r H ⊖, for the process. The subscript means "reaction" and the superscript means "standard".

Jacobus Henricus van 't Hoff Jr. (Dutch: [vɑn (ə)t ˈɦɔf]; 30 August 1852 – 1 March 1911) was a Dutch physical chemist. A highly influential theoretical chemist of his time, Van 't Hoff was the first winner of the Nobel Prize in Chemistry.

Feb 25, 2025 · Jacobus Henricus van ’t Hoff (born Aug. 30, 1852, Rotterdam, Neth.—died March 1, 1911, Berlin, Ger.) was a Dutch physical chemist and the first winner of the Nobel Prize for Chemistry (1901), for his work on rates of chemical reaction, chemical equilibrium, and …

which is known as the van ’t Hoff equation. It shows that a plot of \(\ln K\) vs. \(1/T\) should be a line with slope \(-\Delta_r{H^o}/R\) and intercept \(\Delta_r{S^o}/R\).

Jun 28, 2020 · The van’t Hoff factor is a positive number, but it isn’t always an integer value. It is 1 for a solute that does not dissociate into ions, greater than 1 for most salts and acids, and less than 1 for solutes that form associations when dissolved.

which is known as the van’t Hoff equation. It shows that a plot of \(\ln K\) vs. \(1/T\) should be a line with slope \(-\Delta_r{H^o}/R\) and intercept \(\Delta_r{S^o}/R\). Figure: Endothermic Reaction (left) and Exothermic Reaction Van't Hoff Plots (right).

Jacobus Henricus van’t Hoff, a Dutch scientist, conducted studies in the late 1800s that led to the birth of a new scientific field: physical chemistry. In 1872 van’t Hoff (1852–1911) went to Bonn to study for a year.

This principle of mobile equilibrium was subsequently (1885) put in a general form by Le Chatelier, who extended the principle to include compensation, by change of volume, for imposed pressure changes – it is now known as the van ‘t Hoff-Le Chatelier principle.

Jacobus Henricus van 't Hoff (August 30, 1852 - March 1, 1911), a Dutch physical and organic chemist, was the first to propose a three-dimensional model for the structure of simple carbon compounds. He applied the principles of physics to calculate the speed of chemical reactions, and showed that solutions obey many of the same laws as gases.

Jacobus H. van’t Hoff, (born Aug. 30, 1852, Rotterdam, Neth.—died March 1, 1911, Berlin, Ger.), Dutch physical chemist. His early work on stereochemistry explained optical activity in terms of the tetrahedral bonding of carbon atoms in organic molecules (see configuration).