HELP?!

1. It is time to practice using potential energy diagrams. Respond to the three questions below on energy diagrams and submit to your instructor.
Consider the potential energy diagram shown below. This graph shows the chemical potential energy in a reaction system over time. The y–axis is potential energy in kilojoules. The x–axis is the reaction progress, or time.

Question

HELP?!

1. It is time to practice using potential energy diagrams. Respond to the three questions below on energy diagrams and submit to your instructor.
Consider the potential energy diagram shown below. This graph shows the chemical potential energy in a reaction system over time. The y–axis is potential energy in kilojoules. The x–axis is the reaction progress, or time.

jgirl128 · Answer

attachment

jgirl128 · Answer

a. Does this graph represent an endothermic or an exothermic reaction? Explain your answer.
b. What is the enthalpy change, ΔH, for this reaction? Show your work.
c. What is the activation energy, Ea, for this reaction? Show your work.

jgirl128 · Answer

I don't really understand energy diagrams so obviously I don't just want an answer, I need it explained :)

jgirl128 · Answer

actually, I just looked back on my lesson and I think I understand it now. thanks @sweetburger for taking the time to type and try to help me though! :)

sweetburger · Answer

Well, glad to hear it :).