Use the energy diagrams of the two reactions to answer the questions. Reaction A Reaction B 150 150 Energy 100 (kJ/mol) 100 Energy (kJ/mol) 50 50 0 0 Reaction progress Reaction progress What is the change in energy for reaction A? What is the change in energy for reaction B? AErxn = kJ/mol AErxn = kJ/mol What is the activation energy for reaction A? What is the activation energy for reaction B?