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UPS II PDT KMS

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Chapter 1 sem II PDT Chemistry (Solid & Liquid)

1.      What do you understand by the term boiling point.

            “The boiling point of a liquid increases with increasing intermolecular attractive forces”. Explain the above statement.

      2.    State two factors affecting the boiling point.

2.                                State the properties of liquid.

3.      The following table shows the boiling points for a few liquids

Liquid	Ethanal,CH3CHO	Ethanol,CH3CH2OH	Methanol,CH3OH
Boiling point/°C	20	78	65

 Arrange these liquids in order of increasing vapour pressure. Explain.

4.      4Using the kinetic theory, explain the changes that occur when ice was left at room temperature.

5.     5. Define melting point and normal melting point of a substance.

6.      

       6. When a solid is heated in a closed container, it undergoes phase changes. Describe the process.