逆反應意思

逆反應（inverse reaction）在化學中是指與給定反應（forward reaction）相反的化學反應。給定反應是指從特定起始物質轉化為特定產物的化學反應，而逆反應則是這些產物轉化為起始物質的反應。

例如， consider the chemical equation for the combustion of methane (CH4) to form carbon dioxide (CO2) and water (H2O):

CH4 + 2O2 → CO2 + 2H2O

The reverse reaction would be:

CO2 + 2H2O → CH4 + 2O2

However, the reverse reaction is not the same as the backward reaction. The backward reaction refers to the process of going from the products back to the reactants through the same reaction steps, while the reverse reaction involves different steps that lead from the products back to the reactants.

In the context of chemical equilibrium, the forward and reverse reactions are occurring simultaneously, and the system is at equilibrium when the rates of the forward and reverse reactions are equal.