# At 1 atm and a temperature of 0 celcius which phase of H_2O can exist? Why?

Feb 22, 2017

Not enough information to define state - can be solid, liquid or gas.

#### Explanation:

The main point is the temperature. At ${0}^{o} C$, pure water freezes. However, the water has to go through the phase of changing states. I'm not given enough information to determine which state (but if I had to guess, I'd say ice - first thing that came to mind).