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Question

For the elementary reaction, 2a+bProducts the active mass of bis kept constant and that of a is doubled. The rate of reaction will be


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Solution

Active mass:

  1. The quantity of mass involved in a reaction is referred to as active mass, and it is the effective concentration of a substance.
  2. The product of active masses is directly related to the rate of chemical change. The rate of a reaction is defined as the change in concentration of reactants or products per unit time (number of moles per liter).
  3. When the active mass of a is doubled, the rate of reaction increases four times.
  4. Rate=Ka2b.

Therefore, when the active mass is doubled, the reaction rate increases four times.


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