3.1.7 Enthalpy Flashcards
1
Q
Definition for standard enthalpy change.
A
- Occurs at a temperature of 298K and a pressure at 100kPa.
2
Q
Definition for activation energy.
A
- Minimum energy required for a reaction to occur by the breaking of bonds.
3
Q
Definition for enthalpy of combustion.
A
- Enthalpy change that occurs when 1 mol of a substance completely combusts.
4
Q
Definition for enthalpy of neutralisation.
A
- The formation of 1 mol of water from the reaction of an acid with an alkali.
5
Q
Definition for enthalpy of formation.
A
- When 1 mol of a compound is produced from its elements.
6
Q
Definition for calorimetry.
A
- Used to find the heat energy released in a reaction.
7
Q
How can enthalpy of combustion be found experimentally?
A
- Burning a known mass of a compound and using the heat energy to increase the temperature of a known mass of water.
