The rate constant of the elementary reactionBH, (aq) + NH (aq) → BH;NH3 (aq) + H2 (g)is k = 1.94 x 10-4L mol¯' s-' at 30.0°C, and the reactionhas an activation energy of 161 kJ mol.(a) Compute the rate constant of the reaction at a tem-perature of 40.0°C.(b) After equal concentrations of BH (aq) and NH, (aq)are mixed at 30.0°C, 1.00 × 10ª s is required for halfof them to be consumed. How long will it take toconsume half of the reactants if an identical experi-ment is performed at 40.0°C?

The Arrhenius equation gives the relation between rate constant and temperature. k=Ae-EaRT where A…

Answered: The rate constant of the elementary…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter18: Chemical Kinetics

Section: Chapter Questions

Problem 23P

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Diethylhydrazine reacts with iodine according to the following equation: Â (C2H5)2(NH)2(l)+I2(aq)(C2H5)2N2+2HI(aq)The rate of the reaction is followed by monitoring the disappearance of the purple color due to iodine. The following data are obtained at a certain temperature. (a) What is the order of the reaction with respect to diethylhydrazine, iodine, and overall? (b) Write the rate expression of the reaction. (c) Calculate k for the reaction. (d) What must [(C2H5)2] be so that the rate of the reaction is 5.00104mol/Lh when [ I2 ]=0.500M?
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