NEET Chemistry Chemical Kinetics Questions Solved

BOARD

What is meant by rate of a reaction? Differentiate between average rate and instantaneous rate of a reaction.

Rate of reaction : It is the change in concentration of the reactants or products in a unit time.

Average rate : Average rate depends upon the change in concentration of reactants or products and the time taken for the change to occur. RP

     Average rate = -Δ[R]Δt

or  Average rate =+Δ[P]Δt

Instantaneous rate : It is defined as the rate of change in concentration of any one of the reactant or product at a particular moment of time.

 

          limt0 -Δd[R]dt = -d[R]dt

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