how can you show that evaporation causes cooling
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Evaporation causes cooling
Eg - After too much of exercise it is obvious you will perspire and feel hot. In this case you may not be able to feel cool but as soon as you move to a windy area(under the fan) or in a room with AC you will feel cool as evaporation of that sweat takes place absorbing the heat around you and vaporizing.
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Eg - After too much of exercise it is obvious you will perspire and feel hot. In this case you may not be able to feel cool but as soon as you move to a windy area(under the fan) or in a room with AC you will feel cool as evaporation of that sweat takes place absorbing the heat around you and vaporizing.
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Evaporation is the process of conversion of water (liquid) to the water vapor (gaseous state). When liquid changes to gaseous state it absorbed some heat or energy from surrounding that decrease the temperature of surrounding and causes cooling effect.
One of the live example is sweating. In hot summer days, sweat evaporate causes cooling effect that balance the temperature of body.
Hence, evaporation is effective process that balance our body temperature in hot sunny days.
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