Q47 of 66 Page 55

Why does the rate of any reaction generally decreases during the course of the reaction?

The rate of a reaction generally decreases with the course of the reaction as the concentration of reactant decreases as soon as the formation of product starts. So during the course of a reaction the concentration of reactant becomes less than that present initially. As rate is directly proportional to the concentration, therefore the rate of reaction also decreases with time.




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