Reaction coordination diagram

Question 1

the starting point for either the forward or the reverse reaction

Answer 1

Ground state

Question 2

“available energy” in a system that can be used to do work

Answer 2

Gibbs Free Energy (G)

Question 3

Gibbs Free Energy equation and what each letter represents

Answer 3

G = H –TS
* Enthalpy (H): internal energy (excluding kinetic energy of motion and potential energy to external force
fields) + energy to establish pressure and volume
Entropy= S, which is molecular disorder

Question 4

Delta G0

Answer 4

Standard free-energy change

Question 5

Delta G’O =

Answer 5

biochemical standard free-energy change (DG0 at pH 7.0)

Question 6

DGǂ: activation energy (ǂ double dagger) is what?

Answer 6

• is the difference between energy levels of ground and transition states
• least energy required to activate molecules to a state for a reaction to occur
  —>
  molecules 1) overcome DGǂ barrier, by gaining
  energy from raising temperature and/or pressure
  or 2) overcome a DGǂ lowered by catalys

Question 7

How does delta Gǂ: activation energy (ǂ double dagger) overcome the Gǂ: barrier

Answer 7

by gaining
energy from raising temperature and/or pressure or it overcomes it by being lowered by a catalyst

Question 8

When delta Gǂ increases what happens to K and V

Answer 8

It decreases

Question 9

What is a transition state?

Answer 9

a fleeting bonding point (status
or moment) at which decay to either substrate or
product is equally likely [not reaction intermediate