text book question 6th edition

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505166714
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text book question 6th edition

Postby 505166714 » Sun Nov 25, 2018 8:08 pm

For question 6.5.c in the 6th edition, why does CHI3 has greater melting point than CHF3. I thought that Fluorine has greater electronegative thus causing the greater dipole moment.

megansardina2G
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Re: text book question 6th edition

Postby megansardina2G » Sun Nov 25, 2018 11:53 pm

Since iodine is much larger than fluorine and has many more electrons, the London dispersion forces will be much stronger in CHI3 than CHF3. Therefore, CHI3 will have the higher melting point.


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