Question

Define melting point. What is the effect of pressure on melting point?

Answer 1

Melting Point: It is defined as the temperature at which the substance changes its state from solid to liquid. For example, the melting point of water is 0⁰C.

Effect of pressure on melting point:

• The effect of pressure on the melting point of a substance will depend upon the nature of the substance.
• As for the metals, increasing pressure will increase their melting point.
• But for water's melting point decreases with an increase in pressure.