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AP Chemistry
6.2 Energy Diagrams
6.1 Endothermic and Exothermic Processes
IntermediateMCQGraphicalConceptual22.3k
Reaction energy profile for \(\text{CO(g)} + \text{NO}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)} + \text{NO(g)}\).
Reaction energy profile for \(\text{CO(g)} + \text{NO}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)} + \text{NO(g)}\).
The reaction energy profile for the gas-phase reaction \(\text{CO(g)} + \text{NO}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)} + \text{NO(g)}\) is shown in the diagram. Which of the following correctly identifies the activation energy, \(E_a\), for the forward reaction and the enthalpy change, \(\Delta H^\circ_{\text{rxn}}\), for the reaction?

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