Q.

Law of mass action is applicable toa) Chemical reactions [Reversible]b) Chemical reactions [Irreversible]c) Homogeneous equilibria and heterogeneous equilibriad) Physical equilibria

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a and c only

a, b and c only

c only

c and d only

answer is B.

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Detailed Solution

Law of mass action states that the rate of a reaction is directly propotional to product of active masses of reactants.Active masses in any physical process are taken as unity.Thus law of mass action cannot be applied to a physical process.Law of mass action can be applied to any chemical process which may be reversible (or) irreversible. It can be Homogeneous (or) Heterogeneous.

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