Give reason: a. why does water get cooled in an earthen pot? b. why should we wear cotton clothes during summers?
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It gets cooled in it because mud does not allow air to gets enter it and inside air to go out.
2) we wear woollen clothes in winter because it does not allow body heat to go out and outside air to enter it.
2) we wear woollen clothes in winter because it does not allow body heat to go out and outside air to enter it.
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a. In an earthen pot, water gets evaporated quickly through the pores. Cooling is caused by evaporation. Some heat energy is utilised during the process of evaporation. ... For evaporative cooling to work, the air needs to be dry so that more molecules leave the water than condense into it.
b. during summer, we perspire more because of the mechanism of our body which keeps us cool... 《 cotton, being a good absorber of water helps in absorbing the sweat and exposing it to the atmosphere for easy evaporation.》
b. during summer, we perspire more because of the mechanism of our body which keeps us cool... 《 cotton, being a good absorber of water helps in absorbing the sweat and exposing it to the atmosphere for easy evaporation.》
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2) we wear woollen clothes in winter because it does not allow body heat to go out and outside air to enter it.