(a) State two characteristic properties of each of the following :
(i) Solid
(ii) Liquid
(iii) Gas
(b) Archit dropped a crystal of potassium permanganate into two beakers, A and B, containing hot water and cold water respectively. After keeping the beakers undisturbed for some time what did he observe and why ?
CBSE Class IX Science LA (5 Marks)
Answers
Answered by
133
Solid
1. They can't be compressed.
2. They have zero fluidity.
Liquid
1. They good fluidity.
2. They can be compressed upto a part.
Gas
1. They have best fluidity.
2. They can be highly compressed.
1. They can't be compressed.
2. They have zero fluidity.
Liquid
1. They good fluidity.
2. They can be compressed upto a part.
Gas
1. They have best fluidity.
2. They can be highly compressed.
Answered by
45
(a) (i) Properties of solid : They have a fixed shape and volume. They are rigid.
(ii) Properties of liquid : They have fixed volume, but not fixed shape. They are not rigid. (iii) Properties of gas : They neither have fixed shape nor fixed volume. They are highly compressible.
(b) Potassium permanganate crystals diffuse faster in hot water.
Because, as the temperature increases diffusion increases.
(ii) Properties of liquid : They have fixed volume, but not fixed shape. They are not rigid. (iii) Properties of gas : They neither have fixed shape nor fixed volume. They are highly compressible.
(b) Potassium permanganate crystals diffuse faster in hot water.
Because, as the temperature increases diffusion increases.
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