Question (a) and (b) ? What is AH (in kJ/mol) for a reaction where the activation energy is250 kJ/mol while the activation energy for the reverse reaction is 125kJ/mol? The activation energy, Ea, for a particular reaction is 13.6 kJ/mol. Ifthe rate constant at 754 °C is 24.5/min, at what temperature (in °C)will the rate constant be 17.3/min? (R = 8.314 J/mol • K)

Answered: The activation energy, Ea, for a…

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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Question (a) and (b) ?

What is AH (in kJ/mol) for a reaction where the activation energy is
250 kJ/mol while the activation energy for the reverse reaction is 125
kJ/mol?

The activation energy, Ea, for a particular reaction is 13.6 kJ/mol. If
the rate constant at 754 °C is 24.5/min, at what temperature (in °C)
will the rate constant be 17.3/min? (R = 8.314 J/mol • K)

Expert Solution

Step 1: Described Activation energy

(a)

Activation energy (E_a) :-

The amount of energy that must be supplied in order to start a chemical reaction is the activation energy. The difference in the activation energy for forward and the reverse reaction is the heat of reaction.

Heat of reaction = activation energy for forward - activation energy for reverse

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