## Kinetic Energy vs Potential Energy

Arrhenius Equation: $\ln k = - \frac{E_{a}}{RT} + \ln A$

Posts: 59
Joined: Fri Sep 29, 2017 7:07 am

### Kinetic Energy vs Potential Energy

In explaining the reaction profile graph for an exothermic reaction (Figure 15.30), the book states: "A reaction profile shows the potential energy of the reactants and products, their total energy arising from their relative location, not their relative speed. Now consider what happens when reactants approach each other with a certain kinetic energy. As the reactants approach, they lose kinetic energy as they “climb” up the left side of the barrier (that is, as their potential energies increase due to the repulsion resulting from their closer approach and the distortions of their bonds)."

What's the difference between kinetic and potential energy in regards to this?

Priyanka Bhakta 1L
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

### Re: Kinetic Energy vs Potential Energy

I believe that the axis for the reaction profile references the total energy of the substances graphed. When the book explains it that way they are just clarifying what components of the total energy for the R and P change as the reaction goes on.

Ramya Lakkaraju 1B
Posts: 67
Joined: Fri Sep 29, 2017 7:03 am

### Re: Kinetic Energy vs Potential Energy

I don't think we have to worry about what components make up the total energy.