Why are we able to sip hot tea or milk faster from a saucer rather that a cup?
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Due to the large surface area of hot tea (or milk) taken in the saucer, the evaporation of hot tea (or milk) from the saucer is faster. The faster evaporation cools the hot tea (or milk) much more quickly making it convenient to sip (or drink). Hence, we are able to sip hot tea or milk faster from a saucer than a cup.
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Answer:
A liquid has a larger surface area in a saucer than in a cup. Therefore, one of the factors affecting evaporation is surface area. The larger is the surface area more is, the more evaporation. Thus, evaporation is faster in a saucer causing more cooling than in a cup. For this reason, we can sip hot tea or milk faster from a saucer than a cup.
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