Problem: The activation energy of a reaction is 7.5 kJ/mol and the change in enthalpy is −37.2 kJ/mol. What is the activation energy of the reverse reaction? a) 37.2 kJ/mol b) 7.5 kJ/mol c) 44.7 kJ/mol d) 29.7 kJ/mol e) The reverse does not occur and hence does not have an activation energy.

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The activation energy of a reaction is 7.5 kJ/mol and the change in enthalpy is −37.2 kJ/mol. What is the activation energy of the reverse reaction?

a) 37.2 kJ/mol

b) 7.5 kJ/mol

c) 44.7 kJ/mol

d) 29.7 kJ/mol

e) The reverse does not occur and hence does not have an activation energy.

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