Question

State the effect of increase of pressure on the melting point of ice.

Answer 1

Hint: When the solid substance is heated, the molecules of the substance move away from each other. Solid substance is then converted to liquid state.
The ice is the solid form of water. When the ice is heated it gets converted into water.

Complete step-by-step answer:

The pressure is the external physical state of the matter. When the external component of any system changes, it will try to take out the system from equilibrium. This phenomenon is described by LeChatelier's principle.
The system then adjusts towards the changes made on the system.

Thus, the following changes on the ice can be observed according to LeChatelier’s principle:

When the pressure on the ice is increased, the ice water system will acquire the equilibrium at the lower point.
More ice can occupy less space.
The volume of ice is less than that of water.
Increase in the pressure can lower its volume more.
So, the melting point of ice is reduced.

The melting point of the ice is reduced at lower temperature.

Note: The melting point is the temperature of the solid substance at which it gets converted into liquid. The melting point is inversely proportional to the pressure. The solid substance is directly converted into a gaseous state, this process is known as sublimation.