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If Δ?∘rxnΔ⁢Hrxn∘ and Δ?∘rxnΔ⁢Srxn∘ are both positive values, what drives the spontaneous reaction and in what direction at standard conditions? The spontaneous reaction is entropy-driven to the left. The spontaneous reaction is enthalpy-driven to the left. The spontaneous reaction is entropy-driven to the right. The spontaneous reaction is enthalpy-driven to the right.

If Δ?∘rxnΔ⁢Hrxn∘ and Δ?∘rxnΔ⁢Srxn∘ are both positive values, what drives the spontaneous reaction and in what direction at standard conditions? The spontaneous reaction is entropy-driven to the left. The spontaneous reaction is enthalpy-driven to the left. The spontaneous reaction is entropy-driven to the right. The spontaneous reaction is enthalpy-driven to the right.

Chemistry
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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CompoundΔ?∘fΔ⁢Gf∘ (kJ/mol)A+387.7+387.7B+604.7+604.7C+402.0+402.0

Use the data given in the table to calculate the value of Δ?∘rxnΔ⁢Grxn∘ at 25∘25∘ C for the reaction described by the equation

 

A+B↽−−⇀CA+B↽−−⇀C
Δ?∘rxn=Δ⁢Grxn∘=
 
If Δ?∘rxnΔ⁢Hrxn∘ and Δ?∘rxnΔ⁢Srxn∘ are both positive values, what drives the spontaneous reaction and in what direction at standard conditions?
The spontaneous reaction is entropy-driven to the left.
The spontaneous reaction is enthalpy-driven to the left.
The spontaneous reaction is entropy-driven to the right.
The spontaneous reaction is enthalpy-driven to the right.
Expert Solution
Step 1

If Δ⁢Hrxn∘ and Δ⁢Srxn∘ are both positive values, entropy should be higher. Due to which ∆G would be negative. 

As we know, ∆G should be negative for reaction to be spontaneous.

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