Use the given reactions below: N2 (g) + 2O2 (g) -> 2NO2 (g) ?H° = +66.4 kJ 2NO (g) + O2 (g) -> 2NO2 (g) ?H° = -114.2 kJ According to Hess's Law, what is the enthalpy of the reaction (kJ) for N2 (g) + O2 (g) -> 2NO (g)?
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This gives us: \[ 2 \mathrm{NO}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=+114.2 \mathrm{~kJ} \] Show more…
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Given the data $$\begin{aligned} \mathrm{N}_{2}(g)+\mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{NO}(g) & \Delta H=+180.7 \mathrm{kJ} \\ 2 \mathrm{NO}(g)+\mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{NO}_{2}(g) & \Delta H=-113.1 \mathrm{kJ} \\ 2 \mathrm{N}_{2} \mathrm{O}(g) \longrightarrow 2 \mathrm{N}_{2}(g)+\mathrm{O}_{2}(g) & \Delta H=-163.2 \mathrm{kJ} \end{aligned}$$ use Hess's law to calculate $\Delta H$ for the reaction $$\mathrm{N}_{2} \mathrm{O}(g)+\mathrm{NO}_{2}(g) \longrightarrow 3 \mathrm{NO}(g)$$
Calculate Use Hess's law to determine $\Delta H$ for the reaction $N O(g)+O(g)+0(g) \rightarrow$ $N O_{2}(g) \Delta H=?$ given the following reactions. Show your work. $\begin{array}{l}{\mathrm{O}_{2}(\mathrm{g}) \rightarrow 20(\mathrm{g}) \Delta \mathrm{H}=+495 \mathrm{kJ}} \\ {2 \mathrm{O}_{3}(\mathrm{g}) \rightarrow 30_{2}(\mathrm{g}) \Delta \mathrm{H}=-427 \mathrm{kJ}} \\ {\mathrm{NO}(\mathrm{g})+\mathrm{O}_{3}(\mathrm{g}) \rightarrow \mathrm{NO}_{2}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{g}) \Delta \mathrm{H}=-199 \mathrm{kJ}}\end{array}$
Given the following, $4 \mathrm{NO}(g) \longrightarrow 2 \mathrm{~N}_{2} \mathrm{O}(g)+\mathrm{O}_{2}(g) \quad \Delta G^{\circ}=-139.56 \mathrm{~kJ}$ $2 \mathrm{NO}(g)+\mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{NO}_{2}(g) \quad \Delta G^{\circ}=-69.70 \mathrm{~kJ}$ calculate $\Delta G^{\circ}$ for the reaction $$2 \mathrm{~N}_{2} \mathrm{O}(g)+3 \mathrm{O}_{2}(g) \longrightarrow 4 \mathrm{NO}_{2}(g)$$
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