Chapter 7 - Energy Changes Flashcards
1
Q
What is an exothermic reaction {3}
A
- Transfers energy to the surroundings
- Usually by heating
- Rise in temp
2
Q
Two examples of exothermic {2}
A
- Hand Warmers
- Self heating cans
3
Q
What is an endothermic reaction {2}
A
- One which takes in which takes in energy from the surroundings
- Shown by a fall in temperature
4
Q
Examples of endothermic {2}
A
- Sports injury packs
- Thermal decomposition
5
Q
What is activation energy {1}
A
Minimum amount of energy that particles must have
