Physics
Dry ice is another name for solid carbon dioxide. Determine the minimum external pressure (p0) required so that the melting of dry ice is observed. If p < p0, what phase transition sequences will be observed?
Imagine you are in a laboratory experimenting with water. You carefully control the conditions as the temperature of the water reaches 150°C. What phase will the water be in under a pressure of 1 atm?
At what range of pressures and temperatures can water exist as a liquid? Refer to the phase diagram of H2O.