9.3 ENERGY CHANGES Flashcards
1
Q
What is the energy change for exothermic reaction?
A
Transfers thermal energy to surroundings
2
Q
What is the energy change for endothermic reaction?
A
Transfers thermal energy from surroundings
3
Q
What is the temperature change for exothermic reaction?
A
Increases
4
Q
What is the temperature change for endothermic reaction?
A
Decreases
5
Q
What are some examples of exothermic reaction?
A
- Burning
- Neutralisation
- Condensing
- Freezing
6
Q
What are some examples of endothermic reaction?
A
- Reaction of citric acid & with sodium hydrogen carbonate
- Melting
- Evaporation