Condensation and evaporation Flashcards
1
Q
What is condensation?
A
when gas turns to liquid
2
Q
Describe how condensation works:
A
- Gas cools, particles lose kinetic energy
- Attractive forces pull particles closer together
- If they come close enough condensation will take place
3
Q
What is evaporation?
A
When liquid turns to Gas
4
Q
Describe how evaporation works:
A
- particles escape from a liquid if they are close enough to the surface and moving in the correct direction
- The particles have to move fast enough to overcome the attractive forces
5
Q
What happens to the liquid as it evaporates
A
The temperature falls, just like when you sweat
6
Q
The Rate of evaporation will be faster if:
A
- Higher temp (more kinetic energy)
- Lower density (weaker forces)
- Larger surface area
7
Q
The Rate of condensation will be faster if:
A
- Lower temp of gas (less kinetic energy)
- Lower temp of surfac
- Higher density (stronger forces)
