All Questions
Tagged with hydrogen-bond phase
4
questions
24
votes
4
answers
22k
views
Which has stronger hydrogen bonds: water or ice?
As ice is the solid form of water and it has more hydrogen bonds than water because its oxygen atoms are precisely tetrahedrally positioned and each oxygen is hydrogen bonded by four neighbouring ...
6
votes
3
answers
18k
views
Why is ice less dense than water?
I know the traditional explanation, which says that ice has large spaces between $\ce{H2O}$ molecules because hydrogen-bonding gives it an open structure. But what does the open structure have to do ...
2
votes
1
answer
1k
views
Hydrogen Bonding in Water Phase Changes
How is the disparity between the heat of fusion and the heat of vaporization for $\ce{H2O}$ best explained?
A) It takes more hydrogen bonds for water to fuse than it does to vaporize.
B) Water ...
4
votes
1
answer
35k
views
Why is the boiling point of water and ammonia so different?
Boiling point of water is 100 degrees Celsius, while boiling point of ammonia is minus 33 degrees Celsius, which makes 133 degrees difference. Now when we discuss value of boiling point, we also say ...