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Explain second-order reactions in details.


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Second order reaction

  1. A second order reaction is a type of chemical reaction that depends on the concentration of two first order reactants or one second order-reactant.
  2. This reaction proceeds at a rate proportional to the product of the concentration of two reactants and to the square of one reactant.
  3. If the reaction is as follows: 2AP, the of such reactions is written as r=KA2 where K= rate constant of second order reaction.
  4. In these reactions, the rate is proportional to the square of the concentration of one reactant, hence it is a second order reaction.
  5. Unit of rate of reaction (r) is molL-1.s-1.
  6. Examples: In many biological reactions, just like the formation of double stranded DNA from the two complementary strands, this whole process is prescribed by kinetics known as Second-order kinetics.

Therefore, Second order kinetics depends on squares of concentrations either two or one.


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