Calculate the enthalpy of the reaction 2NO(g) + O2(g)→2NO2(g) given the following reactions and enthalpies of formation: 1. N2 (g) + O2(g)→NO2(g), AH¿= 33.2 kJ 2. N2 (g) + O2 (g)→NO(g), AH = 90.2 kJ Express your answer with the appropriate units. • View Available Hint(s) ? AH° = Value Units

Chemistry
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Chapter1: Chemical Foundations
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Enthalpy a

### Part A

**Calculate the enthalpy of the reaction:**

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

**Given the following reactions and enthalpies of formation:**

1. \(\frac{1}{2}\text{N}_2(g) + \text{O}_2(g) \rightarrow \text{NO}_2(g)\),   \(\Delta H^\circ_A = 33.2 \, \text{kJ}\)
2. \(\frac{1}{2}\text{N}_2(g) + \frac{1}{2}\text{O}_2(g) \rightarrow \text{NO}(g)\),   \(\Delta H^\circ_B = 90.2 \, \text{kJ}\)

**Express your answer with the appropriate units.**

\[ \Delta H^\circ = \_\_\_\_\_ \, \text{Value} \, \text{Units} \]
Transcribed Image Text:### Part A **Calculate the enthalpy of the reaction:** \[ 2\text{NO}(g) + \text{O}_2(g) \rightarrow 2\text{NO}_2(g) \] **Given the following reactions and enthalpies of formation:** 1. \(\frac{1}{2}\text{N}_2(g) + \text{O}_2(g) \rightarrow \text{NO}_2(g)\), \(\Delta H^\circ_A = 33.2 \, \text{kJ}\) 2. \(\frac{1}{2}\text{N}_2(g) + \frac{1}{2}\text{O}_2(g) \rightarrow \text{NO}(g)\), \(\Delta H^\circ_B = 90.2 \, \text{kJ}\) **Express your answer with the appropriate units.** \[ \Delta H^\circ = \_\_\_\_\_ \, \text{Value} \, \text{Units} \]
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