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प्रश्न
Why does our palm feel cold when we put some acetone (or perfume) on it ?
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उत्तर
Our palm feels cool when we put acetone over it because acetone takes up the latent heat of vaporisation to change into vapour from our palm.
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संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
What produces more severe burns, boiling water or steam?
What is evaporation?
Wet clothes dry more quickly on a warm dry day than on a cold humid day. Explain.
Explain why in hot summer days water remains cool in earthen pots.
Define the following terms Condensation
What is evaporation ? State the various factors which affect evaporation.
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
Give a geographical reason:
Air becomes saturated.
Can you suggest a method to collect water from sea water?
