The homogeneous dimerization of butadiene: 2C,H(g) = CgH12(g), has been studied by a number of investigators and found to have an experimental activation energy of 23960 cal/ mol, as indicated by the following equation: %3D k = 9.2 x 10°e-23960/RT cm³mol-'s-1 a. What proportion of the collisions between C4H6 molecules have enough energy to result in reaction when the temperature is 200°C? b. Use the collision theory to predict a value of the pre-exponential factor (in SI units) at 600 K. Assume that the collision diameter is 5 x 10-cm. c. By how many times the calculated value of the pre-exponential factor is greater than the experimental value? Suggest a reason for this discrepancy.

The homogeneous dimerization of butadiene: 2C,H(g) = CgH12(g), has been studied by a number of investigators and found to have an experimental activation energy of 23960 cal/ mol, as indicated by the following equation: %3D k = 9.2 x 10°e-23960/RT cm³mol-'s-1 a. What proportion of the collisions between C4H6 molecules have enough energy to result in reaction when the temperature is 200°C? b. Use the collision theory to predict a value of the pre-exponential factor (in SI units) at 600 K. Assume that the collision diameter is 5 x 10-cm. c. By how many times the calculated value of the pre-exponential factor is greater than the experimental value? Suggest a reason for this discrepancy.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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