- #1
unscientific
- 1,734
- 13
Does ice melt or remain frozen at 0 degree celcius?
Does Ice Melt at 0 Degrees Celsius?
- Thread starter unscientific
- Start date
In summary, at 0 degrees Celsius, ice can both melt and remain frozen depending on the conditions. The Clausius-Clapeyron equation explains this phenomenon through latent heat. Pressure remains constant at 1 atm, but the triple point for water is actually at 0.01C. There is no definite point at which there is only ice or water, but rather a coexistence region. It takes energy to melt ice, so if no energy is added, the ice will not melt.
- #2
tehno
- 375
- 0
He,he,he :Both!
- #3
masudr
- 933
- 0
Thanks to latent heat (look up Clausius-Clapeyron equation for more details)
- #4
Bystander
Science Advisor
Homework Helper
Gold Member
- 5,623
- 1,756
Are you adding or removing energy (heat)? Are you increasing or decreasing pressure?
- #5
unscientific
- 1,734
- 13
no energy is removed or added and pressure is at a constant 1 atm.
- #6
Farsight
- 453
- 0
I think the answer is that it remains frozen. The triple point is 0.01C.
http://en.wikipedia.org/wiki/Triple_point
http://en.wikipedia.org/wiki/Triple_point
- #7
DaveC426913
Gold Member
- 22,989
- 6,665
Tehno is right, it does do both. Molecules are constantly joining and departing from the surface at the same time. The ratio stays about the same unless the temp is added or removed.
- #8
Claude Bile
Science Advisor
- 1,479
- 26
Farsight said:
The triple point is not at 1 atm pressure though!
Claude.
- #9
Epicurus
- 76
- 0
H20 does not have a triple point at atmospheric pressure.
- #10
scarecrow
- 139
- 0
lol...if that was the case we'd be dead.
- #11
Epicurus
- 76
- 0
In general there is a coexistence region whereby two phases will be simultaneously present. This happens over an extended temperature range and if predicted by the van der Waals equation of state. I am unsure what this is for water but there is no definate point at which we have either a totally water or totally ice, just proportions of either.
- #12
castaway
- 13
- 0
oops i didnt read that pressure will be constant , sorry... well ice will start melting atzero degree celsius
- #13
unscientific
- 1,734
- 13
so does it remain frozen...or does it start to melt?
- #14
Doc Al
Mentor
- 45,586
- 2,310
It takes energy to melt ice. If you don't add any, the ice won't melt.
FAQ: Does Ice Melt at 0 Degrees Celsius?
1. What is the melting point of ice?
The melting point of ice is 0 degrees Celsius or 32 degrees Fahrenheit.
2. Why does ice melt at 0 degrees Celsius?
Ice melts at 0 degrees Celsius because this is the temperature at which the solid form of water transitions into the liquid form. At this temperature, the molecules of water have enough energy to break their bonds and move around, causing the ice to melt.
3. Does ice always melt at 0 degrees Celsius?
No, ice does not always melt at 0 degrees Celsius. The melting point of ice can vary depending on factors such as pressure and impurities in the ice. Additionally, substances such as salt can lower the melting point of ice.
4. Can ice be colder than 0 degrees Celsius?
Yes, ice can be colder than 0 degrees Celsius. In fact, ice can exist at temperatures as low as -109.3 degrees Celsius. This is known as supercooled water and occurs when water does not have enough energy to form into ice crystals.
5. What happens if ice is heated above 0 degrees Celsius?
If ice is heated above 0 degrees Celsius, it will continue to melt and eventually reach the temperature of the surrounding environment. Once the temperature reaches above 0 degrees Celsius, the water will turn into a liquid state.