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Matter in Our Surroundings
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07/11/2021 4:30 pm
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(a) When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.
(b) A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother’s room. Explain how the smell could have reaches her brother’s room.
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07/11/2021 4:31 pm
(a) Diffusion is the process involved in this as the fragrance quickly spreads in the entire room.
(b) The smell of food being cooked reaches the other room by the diffusion of gases released into the air during the cooking of food.