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Two thermometers A and B are dipped in w...

Two thermometers A and B are dipped in water and alcohol respectively taken in two containers of similar dimensions at room temperature. Compare the temperatures shown by these two thermometers giving appropriate reasons.

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The rate of evaporation depends upon the nature of the liquid. In case of alcohol, the surface molecules possess high kinetic energy as a result they easily escape into atmosphere that is the of evaporation is more. As evaporation causes cooling, decrease in temperature in case of alcohol is more. Due to this reason, a decrease in the level of mercury is observed in the case observed in the case of container B having alcohol but not in the case of A having water.
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