The results show that when some reactant content is changed,the shifting direction of chemical equilibrium in the gaseous phase under constant temperature and pressure depends on the following factors: the initial equilibrium concentration of the designated constituent,the amount of substance of addition constituent,the type of reacton and the molar volume.

The relation between equilibrium concentration and the solution of dynamics equation;

This paper summarizes most of the present methods of reconstruction of strata denotation thickness,and further discusses another previous proposed method which uses natural gas equilibrium concentration.

To study engine emission pollution perfectly,a new model for calculating equilibrium concentration of combustion products in cylinder is presented in the paper,it fully considers various combustion products and their interactions.

Furthermore, it is emphatically pointed out that the influence of the initial functional group concentration on the average degree of polymerization in equilibrium condensation polymeriz.