Reactivity 1.4 - Entropy Flashcards
(12 cards)
1
Q
Define Entropy
A
The distribution of available energy in a system.
2
Q
Factors that affect entropy change
A
3
Q
Standard entropy change formula
A
4
Q
What is a spontaneous process
A
A process that occurs without adding energy
5
Q
What must the total change in entropy for a spontaneous process be?
A
Positive
6
Q
Entropy change of surroundings formula
A
7
Q
Comment on heat of surroundings and entropy of system for exothermic and endothermic
A
8
Q
Summarise the affect of entropy on the spontaneity of a reaction
A
9
Q
Standard Gibbs free energy change
A
10
Q
When does equilibrium occur in terms of gibbs free energy and entropy
A
It occurs when Gibbs free energy is at a minimum and entropy is at a maximum
11
Q
How can K be calculated
A
12
Q
A
