The forward reaction of a reversible reaction is exothermic and has an activation energy of +30kJ mol$^{ - 1}$.
The reverse reaction proceeds by a mechanism that is the exact reverse of the mechanism of the forward reaction.
Which statement about the activation energy of the reverse reaction is correct?
1 )
The activation energy for the reverse reaction is equal to -30kJ mol$^{ - 1}$.
2 )
The activation energy for the reverse reaction is greater than 0kJ mol$^{ - 1}$ but less than +30kJ mol$^{ - 1}$.
3 )
The activation energy for the reverse reaction is equal to +30kJ mol$^{ - 1}$.
The activation energy for the reverse reaction is greater than +30kJ mol$^{ - 1}$.
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