We have to determine if the dipole moment of the HBr molecule would increase, decrease or stay the same if the bond length of the HBr molecule is decreased, provided that the effective charges on atoms stay the same.
Dipole moment (μ) is defined as the product of charge separation (bond length) and the magnitude of charges.
μ = dipole moment
q = magnitude of charge
r = bond length
If you were to put HBr under very high pressure, so its bond length decreased significantly, would its dipole moment increase, decrease, or stay the same, if you assume that the effective charges on the atoms do not change?
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