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प्रश्न
During summer, water kept in an earthen pot becomes cool because of the phenomenon of
विकल्प
diffusion
transpiration
osmosis
evaporation
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उत्तर
evaporation
During summer, water kept in an earthen pot becomes cool because of the phenomenon of evaporation. Earthen pot has a large number of tiny pores in its walls and some of the water molecules continuously keep seeping through these pores to outside the pot. This water evaporates continuously and takes the latent heat required for vaporization from the remaining water. In this way, the remaining water loses heat and gets cooled.
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संबंधित प्रश्न
The temperature at which a liquid gets converted into its vapour state is called its
Rapid conversion of water into steam is an example of
Boiling takes place from the
Explain the terms boiling point.
A pressure cooker is based on the principle that boiling point of water increases with the ______.
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A sample of water under study was found to boil at 102°C at normal temperature and pressure. Is the water pure? Will this water freeze at 0°C? Comment.
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
Why does the temperature of a substance remain constant during its melting point or boiling point?
Assertion (A): No-new substance is formed when water is heated to get steam.
Reason (R): Conversion of water into steam is a physical change.
