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CBSE Jagran Josh

CBSE Jagran Josh

Posted on November 15, 2014

पानी को बॉईल करने से वो ऊपर नही आता लेक

पानी को बॉईल करने से वो ऊपर नही आता लेकिन धुंध बॉईल करने से वो ऊपर अजाता है.ऐसा केओं?
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  • CBSE Jagran Josh
    on November 17, 2014
    When water is boiled, the dissolved oxygen gains thermal energy, becomes light, comes to the top as a bubble and bursts to go into the atmosphere. The evolution of gases is significant until most of them are removed.
    Similarly, when milk is boiled, the d...  more
  • CBSE Jagran Josh
    on November 17, 2014
    As milk heats, the water in its structure starts evaporating from the surface. This concentrates the
    remaining fat and proteins (which are lighter than milk) into a thicker layer at the top of the pot.
    This layer eventually becomes so thick that water vapour rising through the milk can't break through
    very easily and gets trapped. ...  more