Question

1) What does boiling point of liquid indicates?

2) how does rate of diffusion change in diffusion of gas in a liquid on heating.

Answer 1

boiling point = the boiling point of liquid indicates that when the heat energy is consumed in the form of latent heat the liquid indicates it's boiling point.
the rate of diffusion change in the diffusion of gas in a liquid on heating because on heating the kinetic energy become high so......

Answer 2

1) A liquid at high pressure has a higher boiling point than when that liquid is at atmospheric pressure. For a given pressure, different liquids boil at different temperatures. For example, water boils at 100 °C (212 °F) at sea level, but at 93.4 °C (200.1 °F) at 2,000 metres (6,600 ft) altitude.