Energy (kJ/mol) 150 AE 100 50 0 E Reaction A What is the change in energy for Reaction A? Number Reaction progress kJ/mol What is the activation energy for Reaction A? Number 0 kJ/mol Energy (kJ/mol) 150 100 50 0 DE What is the change in energy for Reaction B? Number 0 Reaction B = E Reaction progress kJ/mol What is the activation energy for Reaction B? Number kJ/mol