Use standard enthalpies of formation to calculate AHreaction for the following reaction. Leave your units in kilojoules but do not type units with your answer. 3 NO2 + H20 -> 2 HNO3 + NO AH (kJ/mol) NO2 33.2 H20 -285.8 HNO3-207 91.3 NO

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Use standard enthalpies of formation to calculate ΔH_reaction for the following reaction. Leave your units in kilojoules but do not type units with your answer.

3 NO₂ + H₂O --> 2 HNO₃ + NO

\[
\begin{array}{|c|c|}
\hline
 & ΔH_f \, (\text{kJ/mol}) \\
\hline
\text{NO}_2 & 33.2 \\
\text{H}_2\text{O} & -285.8 \\
\text{HNO}_3 & -207 \\
\text{NO} & 91.3 \\
\hline
\end{array}
\]
Transcribed Image Text:Use standard enthalpies of formation to calculate ΔH_reaction for the following reaction. Leave your units in kilojoules but do not type units with your answer. 3 NO₂ + H₂O --> 2 HNO₃ + NO \[ \begin{array}{|c|c|} \hline & ΔH_f \, (\text{kJ/mol}) \\ \hline \text{NO}_2 & 33.2 \\ \text{H}_2\text{O} & -285.8 \\ \text{HNO}_3 & -207 \\ \text{NO} & 91.3 \\ \hline \end{array} \]
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Enthalpy of formation is defined as the enthalpy change when 1 mole of a substance is formed from its elements in their most stable forms.

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