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Organic Chemistry

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14 Sep 2010 11:27:19 IST

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why does melting and boiling points of Antimony and Bismuth vary in 15 group elements ?

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why does melting and boiling points of Antimony and Bismuth vary in 15 group elements ?

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Arjun Virmani

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Joined: 1 Jun 2009

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23 Sep 2010 00:47:11 IST

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Melting point and Boiling point of almost every element or compound vary with temp and pressure..

eg:

water boils at 100C at room T and P...while at hilly areas due low P it boils at around 70C....

As the molecules can eescape the surface more easily.....

dev_22oct

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Joined: 27 Feb 2008

Posts: 426

23 Sep 2010 03:43:34 IST

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melting point depends upon the surface area. so when u move down the group there is increase in melting point. same fr bp.

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