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Why a bottle of perfume on opening, evolves an odour which can be sensed over a long distance ? *Due to high diffusibility of gasesDue to high compressibility of gasesDue to both of aboveNo option is correct |
Answer» ★ Answer :The odour of bottle of PERFUME can be sensed over a long distance due to the high diffusibility of gases... (option A).. Reason : Diffusion : Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Gases diffuse rapidly and perfume is a gas ,it diffuses with air and the odour of it reaches our nostrils. Hence we are ABLE to SMELL the odour from a long distance.. ★ Additional Information :Rate of diffusion is affected by : → Temperature : As temperature INCREASES the rate of diffusion in gases increases and decreases with decrease in temperature.. → Surface area : The rate of diffusion increases with increase in surface area and vice versa... → Humidity : The rate of diffusion decreases with increase in humidity and increases with decrease in humidity ... i.e they are INVERSELY proportional. |
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