Chapter 17 Key Terms

Question 1

Entropy

Answer 1

Measure of disorder

s=k(ln(W))

Question 2

Free Energy of Formation

Answer 2

Change in free energy when 1 mol of a compound forms

Question 3

Gibbs free energy

Answer 3

Thermodynamic state function relating enthalpy and entropy. Aka, potential

Question 4

Irreversible Reaction

Answer 4

Reaction that does not achieve theoretical limit of free energy

Question 5

Reversible reaction

Answer 5

Reaction that achieves theoretical limit of G, and can change direction at any change

Question 6

Second Law of Thermodynamics

Answer 6

Entropy always increases

Question 7

Spontaneous Process

Answer 7

Process that occurs without any external intervention

Question 8

Standard Change in Free Energy

Answer 8

Change in G for a process when all reactants and products are in their standard states

Question 9

Standard Entropy Change of Reaction

Answer 9

Change in entropy for a process wherein all reactants and processes are in standard states

Question 10

Standard Molar Entropy

Answer 10

A measure of the energy dispersed into one mole of a substance at a T

Question 11

Third Law of Thermodynamics

Answer 11

Entropy of a perfect crystal at 0 K is 0