Question

What is rate law expression?And what is its use?

Answer 1

Rate Law


• An experimentally determined equation of the rate of the reaction is called the rate law of the reaction. In rate law, the rate of the reaction is expressed as function of the concentration of the reactants and products present in the reaction.

• For gas phase reactions, rate law is expressed in terms of partial pressures, which are related to the molar concentrations.

• The rate law of the reaction is determined experimentally so it cannot be determined theoretically from the chemical equation of the reaction.

• In some cases, the rate law does not depend on the reaction stoichiometry.

Answer 2

rate law expression is an equation that links the reaction rate with concentrations or pressure of the reactants and constant parameters.it is used to predict the relationship between the rate of a reaction and the concentration of the reactants..