The Decomposition of Dinitrogen Pentaoxide Has an Activation Energy of 102

question 21

Multiple Choice

The decomposition of dinitrogen pentaoxide has an activation energy of 102 kJ/mol and ΔH°_rxn = + 55 kJ/mol. What is the activation energy for the reverse reaction?

• A)27 kJ/mol
• B)47 kJ/mol
• C)55 kJ/mol
• D)102 kJ/mol
• E)More information is needed, since this is a Hess's law calculation.

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