PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoGive brief answers to the following questions:
1. ‘Osmosis is a special kind of diffusion’. Comment.
. In both phenomena, there is the movement of particles from a region of higher concentration to that of lower concentration. However, in the case of osmosis, the movement of the solvent is through a which is permeable only to water molecules.
2. Water as ice has a cooling effect, whereas water as steam may cause severe burns. Explain these observations.
In the case of ice, the water molecules have , while in the case of steam, the water molecules have high energy. The of water molecules in steam is converted as heat and may cause burns. On the other hand, in the case of ice, the water molecules take energy from the body and thus give a cooling effect.
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