Multiple Choice Questions on Why does milk rise up on heating boiling while water does not 1 On heating Milk expan........... for UPSC Civil Services Examination (General Studies) Preparation

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Multiple Choice Questions

Why does milk rise up on heating boiling while water does not 1 On heating Milk expan...........

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    Why does milk rise up on heating/boiling while water does not?

    1.    On heating Milk expands while water does not expand on heating.

    2.    The milk gets vaporized on heating and rises up while water does not get vaporized.

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    Explanation:
    • The reason is because milk is an emulsion of fat and water.
    • When you boil milk, the fat separates to the top and forms a layer on top.
    • The water below boils and vaporizes to form steam, but is trapped by the layer of fat above.
    • It pushes the layer up, causing milk to rise.


     

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