Well, actually that would be 32 degrees if you mean ice...
Impurities decrease the melting point of water by interfering with the crystal lattice structure. Pressure can increase the melting point of water by stabilizing the solid form due to the reduced volume and increased interactions between molecules. Overall, impurities tend to lower the melting point, while pressure tends to raise it.
The melting point and freezing point of water is the same at 0 degrees Celsius (32 degrees Fahrenheit) under standard atmospheric pressure. This means that water will transition from solid to liquid (melting) or liquid to solid (freezing) at this temperature.
At standard pressure: - Melting point of ice: 0 0C - Boiling point of water: 100 0C
The melting and boiling points of water change as the air pressure changes. For example, there is a certain air pressure in which steam, water and ice will stay like that forever.
When pressure on a piece of ice is increased, its melting point will decrease. This is because an increase in pressure will stabilize the solid phase, making it harder for the ice to melt into liquid water.
It depends on the pressure. At normal atmospheric pressure, the melting point of water is about 273.15 K.
as you go higher above sea level, pressure decreases. Due to the decrease in pressure, the temperature needed for water to boil is less than it is than it would be at sea level. Thus, it would take less heat energy for the bonds to break and become a gas than it would in an environment with more pressure.
by adding impurities the melting point of ice can be increased.... and perhaps can water melt i think the right question suppose to be how can the melting point of ice be changed?
The melting point of water decreases as pressure increases from 1 atm. At pressures above 1 atm, water requires a lower temperature to melt because the increased pressure helps to stabilize the solid phase.
At 1 atmosphere pressure, ice melts to liquid water at 0° Celsius.
You haven't provided enough information, we need to know, at least, the pressure of said pressure cooker, and even then I'm not sure quite if it's possible. If you look up the phase diagram for water, you can see that the melting point goes down with more pressure.
You would need to look at a temperature / pressure graph