A chemist fills a reaction vessel with 6.65 atm nitrogen (N2) gas, 9.02 atm hydrogen (H2) gas, and 3.58 atm ammonia (NH3) gas at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy ?G for the following chemical reaction: N2(g) + 3H2(g) ? 2NH3(g) Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule.
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Step 1
First, we need to find the standard free energy change for the reaction, ΔG°. According to the ALEKS Data tab, the standard free energy change for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is -33.6 kJ/mol. Show more…
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Use the given standard enthalpies of formation (in $\mathrm{kJ} / \mathrm{mol}$ ) to determine the enthalpy of reaction of the following reaction : $$ \begin{gathered} \mathrm{NH}_{3}(g)+3 \mathrm{~F}_{2}(g) \longrightarrow \mathrm{NF}_{3}(g)+3 \mathrm{HF}(g) \\ \Delta H_{f}^{\circ}\left(\mathrm{NH}_{3}, g\right)=-46.2 ; \quad \Delta H_{f}^{\circ}\left(\mathrm{NF}_{3}, g\right)=-113.0 ; \quad \Delta H_{f}^{\circ}(\mathrm{HF}, g)=-269.0 \end{gathered} $$ 1.T/mnl (h) $-8738 \mathrm{~kJ} / \mathrm{mol}$ (c) $-697.2 \mathrm{~kJ} / \mathrm{mol}$ (d) $-890.4 \mathrm{~kJ} / \mathrm{mol}$
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