12th Class Chemistry Chemical Kinetics / रासायनिक बलगतिकी

  • question_answer 98)
      Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst. Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains the same.

    Answer:

                      (a) Assertion and reason both are correct and reason is the correct explanation of assertion. Enthalpy of reaction i.e., difference of total enthalpy of reactants and product remains constant in the presence of a catalyst. As a catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains same.


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