The cis-trans isomerisation of 1,2-dimethyl cyclopropane at 453 C is a reversible first order reaction.

The cis-trans isomerisation of 1,2-dimethyl cyclopropane at 453 °C is a reversible first order reaction. The percentage composition of the mixture is shown as a function of time, in the following table:

  • Time/s
  1. 0
  2. 45
  3. 90
  4. 225
  5. 270
  6. 360
  7. 495
  8. 585
  9. 675
  • Trans-isomer/%
  1. 0
  2. 10.8
  3. 18.9
  4. 37.7
  5. 41.8
  6. 49.3
  7. 56.5
  8. 60.1
  9. 62.7
  10. 70.0

Calculate the equilibrium constant and the rate constants for the forward and reverse processes (with theory please).

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