2007-08-27 09:46:33 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Yes it does, but weakly.
Melting point of water goes down 1C per 100 atm of pressure.
For example triple point of water (pressure almost zero) is +0.01C, and melting point of water under normal 1atm of pressure is 0.00C.
The slope of equilibrium cureve is given by Clausius-Clapeyron relation:
T dP/dT = L/ΔV
where dP / dT is the slope of the coexistence curve, L is the latent heat, T is the temperature, and ΔV is the volume change of the phase transition.
2007-08-27 09:57:28 · answer #1 · answered by Alexander 6 · 0⤊ 0⤋
Not really. The amount of change in pressure of the atmosphere isnt really enough to cause significant changes in melting points. Neither solids nor liquids arent affected much at all by pressure(not compressible). It's the gases that are affected (so boiling point)
2016-04-02 02:11:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Yes, the melting point or freezing point of water is lowered by increased pressure.
2007-08-29 08:30:04 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋
Not appreciably, it affects evaporation more though.
2007-08-27 09:58:41 · answer #4 · answered by Robert S 7 · 0⤊ 0⤋