Why does water have higher boiling point than alcohol? At what temperature in kelvin, it can be change into solid state and into vapours?

Q. The phenomenon of a liquid changing into vapour at a temperature below its boiling point, is called:

Q. The phenomenon of changing liquid into vapours at a temperature its boiling point is called evaporation.

Q. When water is heated at its boiling point or melting point, its temperature does not change.
a) What is meant by boiling point and melting point?
b) What are the boiling and freezing points of water?
c) Why is there no change in temperature?

Q. In which phenomenon water changes into water vapour below its boiling point?

Q.

(a) Solids	(i) Can flow in all direction
(b) Sublimation	(ii) The temperature at which a liquid changes into its gaseous state
(c) Boiling point	(iii)Can have any number of free surfaces.
(d) Gases	(iv)Gaps between particles
(e)Intermolecular space	(v)Change of state directly from solid to gas.