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प्रश्न
A patient suffering from high fever is advised to put wet clot strips on his forehead. Why?
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उत्तर
Water in wet strips evaporates taking latent heat required for evaporation from the forehead. The temperature of the forehead (body of the patient) falls and he feels relieved.
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संबंधित प्रश्न
What is evaporation?
State three factors which affect the rate of evaporation of a liquid.
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
Explain why in hot summer days water remains cool in earthen pots.
How will you demonstrate that water vapour is present in air ?
How can the evaporation of a liquid be made faster ?
The ______ of air is dependent on the temperature of air.
Can you suggest a method to collect water from sea water?
Evaporation of water from lakes and river ______.
When lemon juice is mixed with soda water, they produce brisk effervescence.
