Question

.A lighted incense stick can be smelt in the other corner of the room but an unlit incense stick cannot be smelt at a distance. a) Which property of matter can be related to the above example? b) Give reason to explain the above observation.

Answer 1

a) it describes the property which states that particles of matter are always in motion

b) this is because the particles of matter are always moving in any random direction. so because of this, they soon reach other parts of the room and thus we are able to smell it.

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Answer 2

this is due to the phenomena of diffusion of two gases.

Explanation:

• Diffusion is a property of the gases and the liquid by which the solid particle moves from the region of the higher concentration to the medium of the lower concentration. When a burning stick is lit at a one end of a room it contains high amount of smell.

• As a result of this the smell gradually stretches from the higher concentration to the other part of the room which has lower concentration.

To know more about diffusion,

define diffusion. why diffusion is greater in gases and not in solids ...

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