You may want to reference (Pages 187 - 190) Section 5.7 while completing this problem. Part C Using values from Appendix C, calculate the value of AH° for each of the following reactions. 2CUO(s) +NO(g)→CU2O(s) +NO2 (g) Express your answer using three significant figures. ? ΔΗR kJ Submit Request Answer

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**Educational Exercise: Calculating Enthalpy Change (\( \Delta H^{\circ} \))**

**Instructions:**

While solving this problem, you may want to reference Section 5.7, Pages 187 - 190.

Use values from Appendix C to calculate the standard enthalpy change (\( \Delta H^{\circ} \)) for the following reactions.

---

**Part C:**

**Reaction:**

\[ 2\text{CuO(s)} + \text{NO(g)} \rightarrow \text{Cu}_2\text{O(s)} + \text{NO}_2\text{(g)} \]

**Task:**

Express your answer using three significant figures.

**Input Box:**

\( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ

- Click "Submit" to enter your answer.
- If you need help, click "Request Answer."

---

**Part D:**

**Reaction:**

\[ 4\text{NH}_3\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{N}_2\text{H}_4\text{(g)} + 2\text{H}_2\text{O(l)} \]

**Task:**

Express your answer using five significant figures.

**Input Box:**

\( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ

- Click "Submit" to enter your answer.
- If you need help, click "Request Answer."

**Note:** Use the provided tools and symbols to accurately write your calculations.
Transcribed Image Text:**Educational Exercise: Calculating Enthalpy Change (\( \Delta H^{\circ} \))** **Instructions:** While solving this problem, you may want to reference Section 5.7, Pages 187 - 190. Use values from Appendix C to calculate the standard enthalpy change (\( \Delta H^{\circ} \)) for the following reactions. --- **Part C:** **Reaction:** \[ 2\text{CuO(s)} + \text{NO(g)} \rightarrow \text{Cu}_2\text{O(s)} + \text{NO}_2\text{(g)} \] **Task:** Express your answer using three significant figures. **Input Box:** \( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ - Click "Submit" to enter your answer. - If you need help, click "Request Answer." --- **Part D:** **Reaction:** \[ 4\text{NH}_3\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{N}_2\text{H}_4\text{(g)} + 2\text{H}_2\text{O(l)} \] **Task:** Express your answer using five significant figures. **Input Box:** \( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ - Click "Submit" to enter your answer. - If you need help, click "Request Answer." **Note:** Use the provided tools and symbols to accurately write your calculations.
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