CBSE Class 11-science Answered
On what factors does dipole moment of molecules depend??..does boiling point and bond length have any thing to do with dipoles of molecules??..pls explain with examples.!
Asked by Meghna G. | 04 Jan, 2013, 09:35: PM
Expert Answer
Dipole moment depends on three factors:
1. Polarity of molecule
2. Magnitude of charge
3. Geometry of molecule
1. Polarity of molecule
2. Magnitude of charge
3. Geometry of molecule
Dipole moment depends upon the bond length. As the formula states: dipole moment = bond length x charge on each element
The following table demonstrates the effect of the dipole moment on the boiling point of several substances:
| Substance | Molecular Mass [g/mol] |
Dipole moment [Debye] |
Normal Boiling Point [ K ] |
| Propane | 44 | 0.1 | 231 |
| Dimethyl ether | 46 | 1.3 | 248 |
| Chloromethane | 50 | 2.0 | 249 |
Answered by | 05 Jan, 2013, 12:49: PM
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