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प्रश्न
Why are we able to sip hot tea or milk faster from a saucer rather than from a cup ?
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उत्तर
We are able to sip hot tea or milk faster from a saucer rather than from a cup because saucer has a larger surface area due to which evaporation occurs faster. The vapours take up the latent heat from hot milk or tea kept in the saucer faster, than in a cup which has a smaller surface area than the saucer and make the contents of the saucer cool down faster.
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संबंधित प्रश्न
Evaporation takes place from the
A liquid can change into vapour state at all temperatures.
Wet clothes dry more quickly on a warm dry day than on a cold humid day. Explain.
Why are volatile liquids such as alcohol and spirit stored in tightly closed bottles?
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
Give two applications of evaporation.
Would you cool a bucket of water more quickly by placing it on ice or by placing ice in it? Give reasons for your answer.
Why does all the water of the earth not get evaporated during hot summer days ?
How does the water kept in an earthen pot (matka) become cold during summer ?
How is humidity measured?
