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For the reaction 2A + B A2B , the following data were obtained.                 Trial          Initial [A]       Initial [B]        Initial Rate (mol/L•s)420 M  0.530 M                               0.420420 M 1.590 M                               3.780140 M  0.530 M                              0.140Determine the order with respect to each reactantDetermine the overall order of reactionWrite the rate expression for the reaction.Find the value of the rate constant, k.

  1. For the reaction 2A + B A2B , the following data were obtained.

                 Trial          Initial [A]       Initial [B]        Initial Rate (mol/L•s)

  • 420 M  0.530 M                               0.420
  • 420 M 1.590 M                               3.780
  • 140 M  0.530 M                              0.140
  1. Determine the order with respect to each reactant
  2. Determine the overall order of reaction
  3. Write the rate expression for the reaction.
  4. Find the value of the rate constant, k.


Step 1
  1. In trail2 concentration of B is nearly thrice to concentration of B in trial 1, but concentration of A remains same and rate increases thrice(trail 1 and 2). Hence, the order is first with respect to reactant A.  Furthermore, the order with respect to reactant B is two because concentration of A in trail 1 is nearly four times greater than concentration of A in trail 3 and concen...

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