Theoretical Models for Chemical Kinetics and Reaction Profiles
Chemical reactions involve the making and breaking of chemical bonds. Since different types of bonds have different bond strengths, the energy of the reacting system changes as the reaction progresses. A graph that shows the change in energy as a function of the progress of the reaction is known as a reaction profile.
According to the theories of chemical reactions, when molecules collide in the correct orientation with a sufficient amount of energy, an activated complex or transition state is formed. The reaction then proceeds and the activated complex decomposes into products.
Part A
Observe the following reactants and predict which of the following may form the potential products given the values for the energy of activation, Ea, and enthalpy of the reaction, ÎH, in combination with the molecular orientation.
Check all that apply.
Check all that apply.
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Part B
The progress of a reaction is determined by various steps involving energy changes with respect to collision theory. Identify the key features of the reaction profile below.
Drag the appropriate labels to their respective targets in the energy profile diagram.
