A simplified equilibrium constant method suggested by GPSA Engineering Datea Book forcalculating the process parameters of Claus sulfur recovery is intorduced in this paper.

The thermodynamic and equilibrium constant criterion of the silver leaching with cyanide is deduced.

The thermodynamic criterion of the gold leaching with thiosulfate is deduced, and the equilibrium criterion of the leaching process is proposed, and the thermodynamic criterion and relative parameters of gold leaching with cyanide and thiosulfate are analyzed and compared.

The dependence of reaction heats and equilibrium constants of each reaction in the system on temperature were obtained.

In this paper,we report calculated intrinsic equilibrium constants for several surface complexation reactions,which are computed by using three frequently used surface complexation models and experimental data from Arsenic adsorption on amorphous aluminum oxides at different solution ionic strength and pH.

Thermodynamic equilibrium constants of chemical reactions, which involve gaseous phases, condensed phases and complex phases, are strictly deduced in terms of chemical potential.

Computation formula for reaction standard balance constant;

Ionization balance constant is determined by conductance method under the condition of invariable temperature.

Through discussing a counting problem on the data of the teaching material,"Abio&Organic Analytical Chemistry",we made out the relation between the temperature and the balance constant,counted out the value of reactive balance constant when transforming Co into CO2 in different temperatures.

A new experiment design on equilibrium constant measures;

Questions about the chemical equilibrium constant in the instruction of inorganic chemistry;

Determination of the equilibrium constant of manganese ions in the acetic acid solution by spectrophotometry;