certain reaction has AHO +25.9 kJ and AS +55.9 J/K ▼ Part A Is the reaction exothermic or endothermic? O exothermic O endothermic Submit Request Answer Part B Does the reaction lead to an increase or decrease in the randomness or disorder of the system? O increase O decrease Submit Part C Request Answer Calculate AG for the reaction at 298 K. Express the free energy change in kilojoules to three significant figures. AG" = ΠΑΣΦ + A tyw kJ I

certain reaction has AHO +25.9 kJ and AS +55.9 J/K ▼ Part A Is the reaction exothermic or endothermic? O exothermic O endothermic Submit Request Answer Part B Does the reaction lead to an increase or decrease in the randomness or disorder of the system? O increase O decrease Submit Part C Request Answer Calculate AG for the reaction at 298 K. Express the free energy change in kilojoules to three significant figures. AG" = ΠΑΣΦ + A tyw kJ I

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

**Problem 19.56 - Enhanced - with Feedback**

A certain reaction has:

\[
\Delta H^\circ = +25.9 \, \text{kJ}
\]

and

\[
\Delta S^\circ = +55.9 \, \text{J/K}
\]

### Part A
Is the reaction exothermic or endothermic?

- [ ] exothermic
- [ ] endothermic

*Submit* *Request Answer*

### Part B
Does the reaction lead to an increase or decrease in the randomness or disorder of the system?

- [ ] increase
- [ ] decrease

*Submit* *Request Answer*

### Part C
Calculate $ \Delta G^\circ $ for the reaction at 298 K.

Express the free energy change in kilojoules to three significant figures.

\[
\Delta G^\circ = \, \_\_\_\_ \, \text{kJ}
\]

*(Input Box)*

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