### Thermochemistry of the Reaction**Consider the following reaction at 25 °C:**\[ 3 \text{NiO(s)} + 2 \text{NH}_3\text{(g)} \rightarrow 3 \text{Ni(s)} + \text{N}_2\text{(g)} + 3 \text{H}_2\text{O(g)} \]#### Objective:Given the information in the table below, calculate the standard enthalpy change (\( \Delta H^\circ \)) for the reaction.| Compound | \( \Delta H_f^\circ \) (kJ/mol) | \( S_f^\circ \) (J/mol·K) ||----------|-------------------|------------------|| NiO (s) | -239.7 | 38 || Ni (s) | 0 | 29.9 || NH\(_3\) (g) | -46 | 192.5 || N\(_2\) (g) | 0 | 191.5 || H\(_2\)O (g) | -241.8 | 188.7 |### Explanation:The table provides the standard enthalpy of formation (\( \Delta H_f^\circ \)) and standard entropy (\( S_f^\circ \)) for each compound involved in the reaction. To calculate \( \Delta H^\circ \) for the reaction, apply Hess's Law:\[ \Delta H^\circ = \sum (\Delta H_f^\circ \text{ of products}) - \sum (\Delta H_f^\circ \text{ of reactants}) \]Calculate by substituting the given values from the table into the equation.

Answered: Image /qna-images/answer/523fca69-12db-484b-bccd-ddbd812531d8.jpg

Compound NIO (S) Ni (s) NH3 (9) N₂ (g) H₂O (g) Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH³(g) → 3 Ni(s) N₂(g) + 3 H₂O(g) Given the information in the table, calculate AH° for the reaction. AHf (kJ/mol) -239.7 0 -46 0 -241.8 + Sf° (J/mol-K) 38 29.9 192.5 191.5 188.7

Compound NIO (S) Ni (s) NH3 (9) N₂ (g) H₂O (g) Consider the following reaction at 25 °C: 3 NiO(s) + 2 NH³(g) → 3 Ni(s) N₂(g) + 3 H₂O(g) Given the information in the table, calculate AH° for the reaction. AHf (kJ/mol) -239.7 0 -46 0 -241.8 + Sf° (J/mol-K) 38 29.9 192.5 191.5 188.7

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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