10 Questions
What type of molecules have no permanent dipole moment?
Non-polar molecules
Give an example of a polar molecule.
Water (H2O)
How does the opposing field induced in a dielectric affect the external field?
It reduces the external field.
What type of charges are separated in a polar molecule?
Positive and negative charges
Do non-polar molecules have a permanent dipole moment?
No
Give an example of an ionic polar molecule.
HCl
What determines the extent of the effect of the opposing field in a dielectric?
The nature of the dielectric
How do the centres of positive and negative charges align in a non-polar molecule?
They coincide
What does a symmetrical structure in a molecule imply about its dipole moment?
No dipole moment
What happens to the positive and negative charges of a non-polar molecule in an external electric field?
They are displaced in opposite directions
Explore the factors influencing the extent of polarisation, including dipole potential energy in external fields, thermal energy, and induced dipole moment effects. Understand how polar and non-polar molecules develop net dipole moments in dielectrics.
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