States Of Matter

After studying this unit you will be
able to
• explain the existence of different
states of matter in terms of
balance between intermolecular
forces and thermal energy of
particles;
• explain the laws governing
behaviour of ideal gases;
• apply gas laws in various real life
situations;
• explain the behaviour of real
gases;
• describe the conditions required
for liquifaction of gases;
• realise that there is continuity in
gaseous and liquid state;
• differentiate between gaseous
state and vapours;
• explain properties of liquids in
terms of intermolecular
attractions