Chemical Equilibrium: Basic Introduction

Chemical equilibrium: The state at which the rate of forward reaction becomes equal to the rate of backward reaction is called chemical equilibrium.

Explanation: Initially the rate of forward reaction is greater than the rate of backward reaction. However during the course of reaction, the concentration of reactants decreases and the concentration of products increases. Since the rate of a reaction is directly proportional to the concentration, the rate of forward reaction decreases with time, whereas the rate of backward reaction increases.

At certain stage, both the rates become equal. From this point onwards, there will be no change in the concentrations of both reactants and products with time. This state is called as equilibrium state.

Get more at: http://www.adichemistry.com/physical/equilibrium/introduction/chemical-equilibrium.html

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