2. Answer the following questions for the given diagram for an uncatalyzed reaction. a. Is the reaction endothermic or exothermic? b. What is the activation energy for the reaction (show your work)? c. What is the change in enthalpy of the reaction (show your work)? d. Show an example of how the diagram might look if a catalyst is added to the reaction by drawing on the diagram. 1. Answer the following questions for the mechanism given below: Step 1: consumed first produced later Step 2: AC+DAD+C (slow) a. What should be the overall reaction for the mechanism if it is valid? A+CAC b. Identify any intermediates and catalysts in the mechanism. i. Intermediate(s): ii. Catalysts(s): c. What should be the rate law for the mechanism if it is valid