For a chemical reaction, the activation energy for the forward reaction is 143 kJ and
the activation energy for the reverse reaction is 9.08 x $10^4$ J. What is the overall
energy change for the forward reaction?
9.07 x $10^4$ kJ
5.22 x $10^4$ kJ
-9.07 x $10^4$ kJ
52.2 kJ
-52.2 kJ