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प्रश्न
Why are we able to sip hot tea or milk faster from a saucer than a cup?
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उत्तर
- A liquid has a larger surface area in a saucer than in a cup. Thus, it evaporates faster and cools faster in a saucer than in a cup.
- For this reason, we can sip hot tea or milk faster from a saucer than from a cup.
APPEARS IN
संबंधित प्रश्न
A liquid can change into vapour state at all temperatures.
Why are volatile liquids such as alcohol and spirit stored in tightly closed bottles?
Why is cooling produced on evaporation of a liquid?
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
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 ?
Give a geographical reason:
Air becomes saturated.
Can you suggest a method to collect water from sea water?
How does the water kept in an earthen pot remain cool?
Look at Fig. 1.3 and suggest in which of the vessels A,B, C or D the rate of evaporation will be the highest? Explain.
