Vapor pressure

  • #1
when some molecules in a liquid gain enough energy to overcome attractive forces by surrounding molecules, they escape from the liquid surface. but when the vapor pressure becomes equal to atmospheric pressure, boiling is said to take place and all the molecules seem to gain sufficient energy to escape. what is the relation of pressure with 'energy' of the molecules? after all pressure is only thrust per unit area. how can it affect the energy of the molecules?
 

Answers and Replies

  • #2
Doc Al
Mentor
44,987
1,259
You increase the vapor pressure by raising the temperature of the liquid (by adding energy to it).
 

Related Threads on Vapor pressure

  • Last Post
Replies
0
Views
1K
Replies
1
Views
2K
  • Last Post
Replies
4
Views
2K
Replies
15
Views
2K
  • Last Post
Replies
3
Views
1K
Replies
1
Views
8K
Replies
1
Views
7K
Replies
5
Views
18K
  • Last Post
Replies
6
Views
923
Replies
2
Views
3K
Top