Hi, I need help with this step-by-step please thank you. Consider the following reaction:C,t, (g) = CzHu (G) + Hz (g)AH°= +137 kJ/moh AS°=+(0 Jhwol.KAt which specific temperatures do you expectthis reaction to be spontaneous?

Answered: Consider the following reaction: C,t,…

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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Hi, I need help with this step-by-step please thank you.

Consider the following reaction:
C,t, (g) = CzHu (G) + Hz (g)
AH°= +137 kJ/moh AS°=+(0 Jhwol.K
At which specific temperatures do you expect
this reaction to be spontaneous?

Expert Solution

Introduction

For any reaction that proceeds spontaneously, the value of free energy that is Delta G remains always less than zero (negative value). This means that reactants' free energy which are available in the initial state has greater Delta G than that of products.

Given Data:

Calculations

The given reaction is shown below.

The Gibbs Helmholtz expression is shown below.

Here,

Therefore, the expression (I) will becomes as follows:

Now substitute the known values in the expression (II) to calculate the temperature.

Therefore, this shows that the reaction is spontaneous at the temperature above 13700 K.

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