Which of the following will expand more, when heated to the same temperature : (a) solid (b) liquid and (c) gas ?
Distinguish between liquid and vapour (or gas) states of matter on the basis of following factors
(a) Arrangement of molecules
(b) Inter-molecular separation
(c) Inter-molecular force, and
(d) Kinetic energy of molecules
select the correct alternative
The correct statement is
- Iron rims are cooled before they are placed on the cart wheels.
- A glass stopper gets tighten on warming the neck of the bottle.
- Telephone wires sag in winter, but become tight in summer.
- A little space is left between two rails on a railway track.