The rate constant for the second order reaction 2nobr

This preview shows page 3 - 5 out of 6 pages.

1.The rate constant for the second-order reaction2NOBr(g) → 2NO(g) + Br2(gis 0.80/M · s at 10ºC. a.Starting with a concentration of 0.086 M, calculate the concentration of NOBr after 22 s. (5 points))
b.Calculate the half-lives when [NOBr]
.
3Copyright © 2014 by Thomas Edison State College. All rights reserved.
1.Define activation energy. What role does activation energy play in chemical kinetics? (5 points)
(Reference: Chang 13.31)1.Given the same reactant concentrations, the reactionCO(g) + Cl2(g) → COCl2(gat 250°C is 1.50 × 103times as fast as the same reaction at 150°C. Calculate the activation energy for this reaction. Assume that the frequency factor is constant. (Hint: use equation 13.14.) (10 points))

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture