Salt melting ice.

  • Thread starter cragar
  • Start date
  • #1
2,544
2

Main Question or Discussion Point

Why does the salt melt the ice , and if i put a soda in a cooler then put ice on it and then put salt on it , it will start to melt the ice and then cool the soda faster then with just ice alone , is it correct to say that the melting of the ice requires heat , and it pulls the heat from the surrounding's so that is why it cools the soda quicker .
 

Answers and Replies

  • #2
mathman
Science Advisor
7,823
433
Salt lowers the freezing point of water, so adding salt has the net effect of changing the mixture so that it is above the freezing point of salted ice.

Melting does require heat, which is taken from the soda.
 

Related Threads on Salt melting ice.

  • Last Post
Replies
14
Views
23K
  • Last Post
Replies
7
Views
3K
  • Last Post
Replies
19
Views
9K
  • Last Post
Replies
0
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
20
Views
6K
  • Last Post
2
Replies
41
Views
13K
  • Last Post
Replies
5
Views
6K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
19
Views
11K
Top