define melting point
boiling point
freezing point
Answers
The melting point of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa. Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding freezing point the temperature at which a liquid turns into a solid when cooled.
Answer:
Melting point..
The temperature at which a solid substance melts and change into liquid at atmospheric pressure, is called melting point of the substance.
Boiling point....
The temperature at which a liquid boils and change rapidly into gas at atmospheric pressure, is called boiling point of the liquid.