Why is there no temp. change during a change off phase?

Question

Why is there no temp. change during a change off phase?

Answer 1

sdgsdgsd

Answer 2

Because there is another mode to save the anergy when crosing the phase

Answer 3

Because there isn't a chemical reaction going on. Heat is made during a chemical reaction because of the breaking, forming of bonds.

Answer 4

temp change is caused by a gain or loss of energy.

during phase change, the energy change is absorbed by the material changing state.

only when that's complete, will the change in energy result in a temp change.

Answer 5

There is no temperature change with ice because %100 percent of the heat goes in to the water.  There is no temperature change until the change off phase is complete.  Hope this helps!

Answer 6

HUH?????? What are you asking?????

Answer 7

It's called the 'point of sublimation' -- the temperature at which a solid transforms into a vapor; such as water (solid liquid) changing to steam (vapor) at 212 Deg. F. at sea level. The steam in open, cooler air then, of course, cools and becomes invisible.

Answer 8

The phase-change temperature (e.g., the melting/freezing point of water) is an equilibrium temperature. This means that at this temperature both liquid and solid, or both liquid and gas, or both solid and gas if subliming, or all three at the "triple point", can exist together without changing phase. A change only happens when heat is added or removed, or pressure is changed. See the ref. for more info.