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Melting Point -PCl3 and PCl5

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Hi guys ,

Here is the questiion can you please help me with that and explain it to me .

Compare the melting points of PCl3 and PCl5 and explain the difference.


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The intermolecular forces between molecules of PCl5 are larger than the ones in PCl3 - thus a higher boiling point the PCl5 molecule is much larger than the PCl3 and the larger number of protons and electrons in the PCl5 molecule make the dispersion attractions greater.


this website should help give you a clearer answer though.

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