Advertisements
Advertisements
प्रश्न
Why are we able to sip hot tea or milk faster from a saucer rather than from a cup ?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Why are volatile liquids such as alcohol and spirit stored in tightly closed bottles?
Explain why in hot summer days water remains cool in earthen pots.
Why is heat energy needed to melt a solid ? What is this heat energy called ?
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.
What type of clothes should we wear in summer ? Why ?
The amount of vapour in 1 cu.m. of air shows the ______.
Why is the air in a region dry?
Give a geographical reason:
Air becomes saturated.
How does the water kept in an earthen pot remain cool?
Comment on the following statements:
Evaporation produces cooling.
