Question

Explain the inter-conversion of the three states of matter in terms of force attraction and K.E of the molecules.

Answer 1

The inter-conversion of states of matter:
In terms of forces of attraction:
The forces of attraction decrease as the solid changes to liquid then the gases.
$Solid\to Liquid\to Gases$
$\to$
Forces of attraction decreased.
In terms of kinetic energy:
Kinetic energy will increases when solid changes to liquids than to gaseous state, because of particles will absorb energy and K.E. increases.
$Solid\to Liquid\to Gases$
$\to$
kinetic energy increases.