Short/long answer questions
5. What do you mean by inter-molecular spacing ?
6. Describe a simple experiment

Short/long answer questions
5. What do you mean by inter-molecular spacing ?
6. Describe a simple experiment to illustrate the
existence of inter-molecular spacing.
7. What do you mean by inter-molecular forces ?
What are the forces of cohesion and adhesion ?
9. State three characteristics of molecules of matter
which determine its solid, liquid and gaseous state.
10. How do solids, liquids and gases differ in their
following properties :
(b) Shape (c) Density ?
11. The molecules in a substance are in motion. What
type of path do they follow ?
12. Describe a simple experiment to illustrate that
molecules are not at rest, but they constantly
(a) Size
move.
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