The Decomposition of Dinitrogen Pentaoxide Has an Activation Energy of 102

question 72

Multiple Choice

The decomposition of dinitrogen pentaoxide has an activation energy of 102 kJ/mol and $\Delta$ H $\degree$ _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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