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NEET-XII-Chemistry

04: Chemical Kinetics

 page 3
Qstn# II-9 Prvs-QstnNext-Qstn
  • #9
    A reaction is first order in A and second order in B.
    () Write the differential rate equation.
    () How is the rate affected on increasing the concentration of B three times?
    () How is the rate affected when the concentrations of both A and B are doubled?
    Ans : null () The differential rate equation will be


    () If the concentration of B is increased three times, then



    Therefore, the rate of reaction will increase 9 times.
    () When the concentrations of both A and B are doubled,



    Therefore, the rate of reaction will increase 8 times.
  • #9-i
    Write the differential rate equation.
    Ans : The differential rate equation will be


  • #9-ii
    How is the rate affected on increasing the concentration of B three times?
    Ans : If the concentration of B is increased three times, then



    Therefore, the rate of reaction will increase 9 times.
  • #9-iii
    How is the rate affected when the concentrations of both A and B are doubled?
    Ans : When the concentrations of both A and B are doubled,



    Therefore, the rate of reaction will increase 8 times.