4.1 Intermolecular forces

4.2 Thermal Energy

4.3 Intermolecular forces Vs Thermal interactions.

4.4 The Gaseous State.

4.5 The Gas Laws

4.6 Ideal gas equation.

4.7 Graham’s law of diffusion – Dalton’s Law of partial

    pressures.

4.8 Kinetic molecular theory of gases.

4.9 Kinetic gas equation of an ideal gas (No derivation)

    deduction of gas laws from Kinetic gas equation.

4.10 Distribution of molecular speeds – rms, average and

    most probable speeds-Kinetic energy of gas molecules.

4.11 Behaviour of real gases – Deviation from Ideal gas

    behaviour – Compressibility factor Vs Pressure diagrams of

    real gases.

4.12 Liquefaction of gases

4.13 Liquid State – Properties of Liquids in terms of Inter

    molecular interactions – Vapour pressure, Viscosity and

    Surface tension (Qualitative idea only. No mathematical

    derivation)