Explain the change of state from solid to liquid on the basis of kinetic theory.

Explain the change of state of matter on cooling.

Explain the heating of an iron rod by conduction on the basis of kinetic model.

The change of state from liquid to solid by the release of heat ………..

Change of a solid to a liquid

Explain how boiling takes place on the basis of kinetic theory.

Name the following Change of state from vapour to liquid .

Assertion : In change of state from solid to liquid the temperature decreases untill the entire amount of the solid subtance melts. Reason : The phenomenon of refreezing is called melting

Solids and liquids (any four points on the basis of kinetic theory)

Evaporation is the change of state from liquid to vapour by absorbing heat at a particular temperature.

A solid material is supplied with heat at a constant rate. The temperature of the material is changing with heat input as shown (i) AB: change of state from solid to liquid. CD: change of state from liquid to vapour (ii) When CD=2AB , i.e., latent heat of vapourization is twice the latent heat of fusion of the substance. (iii) The reciprocal of slope of DE represents the heat capacity of vapour state of substance . (iv) If slope of OAgt slope of BC, i.e., specific heat of liquid state is greater than specific heat that of solid state.