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Plz explain this line. The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of the active masses of the reacting substance?
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Plz explain this line. The rate at which a substance reacts is proport...
Law of mass action is stated by Guldberg and Waage. It states about the influence of the concentration of the reactants on the rate of reaction.

Law of mass action states that the rate at which substance reacts is proportional to its active mass and the rate of chemical reaction is proportional to the product of the active masses of the reactants.

As said in the previous session, active mass is the number of moles per liter. It is represented by placing the chemical formula of the substance in square brackets. For example HCl is represented as [HCl]. 

Explanation of law of mass action: 

Consider a sample reaction of 

A + B ↔ X +Y 

As per the law of mass action the rate of forward reaction α [A] [B] 

                                                                                               = Kf [A] [B] 

Where Kf is proportionality constant and is termed as rate constant for forward reaction. 

Similarly, rate of backward reaction α [X] [Y] 

                                                        =Kb [X] [Y] 

Were Kb is the proportionality constant and is termed as rate constant for backward reaction.
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Plz explain this line. The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of the active masses of the reacting substance?
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