Final Summative Test (Gibbs & Rate Laws)

Question 1

denoted G, combines enthalpy and entropy into a single value.

Answer 1

Gibbs free energy

Question 2

is equal to the sum of the enthalpy plus the product of the temperature and entropy of the system.

Answer 2

cHANGE IN Gibbs free energy

Question 3

cONDITION FOR G to predict the direction of the chemical reaction under two conditions

Answer 3

constant temperature and
constant pressure.

Question 4

Gibbs energy was developed in the 1870’s by

Answer 4

Josiah Willard Gibbs

Question 5

He originally termed this energy as the “_______ ___________” in a system. His paper published in 1873, “Graphical Methods in the Thermodynamics of Fluids,” outlined how his equation could predict the behavior of systems when they are combined. This quantity is the energy associated with a chemical reaction that can be used to do work, and is the sum of its enthalpy (H) and the product of the temperature and the entropy (S) of the system.

Answer 5

available energy