3.2.1 - Enthalpy Changes Flashcards
(32 cards)
1
Q
What is enthalpy?
A
Enthalpy H is a measure of the heat energy in a chemical system.
Enthalpy is sometimes thought of as the energy stored within bonds.
2
Q
What is meant by the “system” in an enthalpy change?
A
The system refers to the chemicals involved in the reaction.
3
Q
What is meant by “surroundings” in an enthalpy change?
A
Everything outside the reacting chemicals.
4
Q
A
5
Q
A
5
Q
A
5
Q
A
5
Q
A
5
Q
A
5
Q
A
6
Q
A
6
Q
A
6
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
Q
A
7
8
8
8
8
8
8
9
