Question

solid ice at zero degree centigrade can be melted by applying pressure without supply of heat from outside. why?​

Answer 1

Answer:

yes of course it can happen the pressure results in creating friction and heat apparently resulting to melt the ice mark me as brainliest please

Explanation:

The stress upon the ice, due to its pressure on the network, gives it a tendency to melt at the point in contact with the wire, and the ice, in the form of water intermixed with fragments and new crystals, moves so as to relieve itself of pressure.”

First up 0 C is the melting point of ice at 1 atm pressure, which means it is the temperature at which the two phase coexist in equilibrium. The P-T curve is called the coexistence curve after all. So no, the ice won’t melt. The ice, however is a nucleation site which can freeze undercooled water. The fact that water at 0 C does not freeze up when an ice cube is immersed in it is also due to terrible kinetics. Note that the word terrible is an understatement since activation barriers for solid nucleation tends to infinity at the melting point.

In short, the phenomenon in which ice converts to liquid due to applied pressure and then re-converts to ice once the pressure is removed is called regelation. ... The melting point of ice falls by 0.0072 °C for each additional atm of pressure applied.