Reaction Feasibility Flashcards
1
Q
What is the entropy (S) of a system?
A
A measure of the degree of disorder of the system.
2
Q
What happens to the entropy of a system when it changes state?
A
There is a rapid increase in entropy at melting point of a substance and an even more rapid and larger change in entropy at boiling point.
3
Q
What is the second law of thermodynamics?
A
The total entropy of a reaction system and its surroundings always increases for a spontaneous process.
4
Q
What is the third law of thermodynamics?
A
The entropy of a perfect crystal at 0K is zero.
5
Q
What value is the change of free energy in a reaction when it is said to be feasible?
A
G will be negative
6
Q
A
7
Q
What value is G at equilibrium?
A
0
