Law of Chemical Equilibrium | Chemistry Assignment Help

Law of Chemical Equilibrium (Law of Mass Action)

The law of mass action (given by Gulberg and Waage) states that under a given set of conditions, the rate of chemical reaction is directly proportional to the product of the activity (concentrations  or active masses) of the reacting substances.

Active mass (Molar concentration) =



Remember that active mass of a gas or liquid means its molar concentration; while active mass of a solid is always taken as unity, irrespective of the quantity.

For pure gases system activity can be taken as partial pressure of individual component.

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