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AP Chemistry
5.6 Reaction Energy Profile
IntermediateMCQMathematical13.8k
A student investigates the elementary gas-phase reaction represented by the equation below.

\[ \text{AB(g)} + \text{C(g)} \rightleftharpoons \text{A(g)} + \text{BC(g)} \quad \Delta H^\circ = +60\text{ kJ/mol}_{\text{rxn}} \]

The activation energy for the forward reaction, \(E_{a,\text{fwd}}\), is determined to be \(140\text{ kJ/mol}_{\text{rxn}}\). What is the activation energy for the reverse reaction, \(E_{a,\text{rev}}\)?

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