Draw Potential Energy Diagrams that fit the criteria.

1.  Exothermic Reaction

2.  Endothermic Reaction

3.  PE of reactants is 80J, PE of products is 40J, Activation energy is 10J, label as exo or endo, and what is the change in energy, ᐃHrxn, enthalpy, reaction energy(these last four terms are all synonyms).

4.  Reaction with a change in energy of -50J, and an activation energy of 20 J. Label as exo or endo, and what are possible energies for reactants and products

5.  Reaction with a change in energy of 30J, and the activated complexes have a PE of 80J. Is this exo or endo, and label the energies of the reactants and products.

6.  Reactants have 60J of PE, products have 20J of PE, and the activated complexes have an overall PE of 100J. Calculate the change in energy, is this exo or endo?

7.  Exothermic Reaction, you need to label what the activation energy is, the PE of the reactants and the PE of the products.

8.  Endothermic Reaction, you need to label what the activation energy is, the PE of the reactants and the PE of the products.