3 Using your sketchpad draw a Gibbs enthalpy (energy) reaction coordinate diagram for an

exergonic
reaction

Question

3. Using your sketchpad, draw a Gibbs enthalpy (energy) reaction coordinate diagram for an exergonic reaction

and include the concept of an activation energy barrier. Label the diagram with ∆G and ∆G‡ (the double dagger notation is sometimes used to indicate the activation energy barrier). Now draw a curve for the same reaction that represents the reaction progress for a catalyzed reaction. What changed? What didn’t? Do the same for an endergonic reaction. Make sure to label reactants and products in both cases.

4. In your sketchbook, draw a free energy reaction coordinate diagram for an energy story associated with the dissociation of NaCl (table sa) in water. Recall that this reaction is spontaneous. Be sure to label the axes and the other components of the diagram (reactants, products, etc). Use each figure to tell yourself a convincing energy story for the reaction and make sure that you include the concepts of bonds forming and breaking and a change of entropy in your story.

Science