Lecture 1

Question 1

What equation do you use to test the spontaneity of a reaction?

Answer 1

∆G° =-nFE°_cell

Question 2

When is a reaction spontaneous?

Answer 2

∆_rG < 0

Question 3

What is ∆G°?

Answer 3

Standard free energy

Question 4

What is ∆_rG?

Answer 4

∆G = G_p - G_R

Question 5

What is Nernst Equation?

Answer 5

E = E° - (2.303RT/nF) logQ

Question 6

Fermi level can also be called:

Answer 6

Electrochemical potential (ECP)

Question 7

What is ECP or Fermi level?

Answer 7

Fermi - the energy of the highest single particle state of fermions in a material
Or
ECP - a measure of thermodynamic chemical potential (partial molar Gibbs free energy)

Question 8

What are the standard conditions for the galvanic cell?

Answer 8

25°C
1 atm/bar pressure
1M solutions

Question 9

What are the differences between the electrolytic cell and the galvanic cell?

Answer 9

Electrolytic: non spontaneous reaction driven by electrical current
Galvanic: spontaneous reaction takes place and produces electrical current