Why are dipole-dipole forces only about 1% the strength of ionic bonds?
Homework Answers
Dipole-dipole is an intermolecular bond while covalent/ionic bonds are intramolecular. intramolecular forces are when electrons are shared or exchanged directly, and atoms are generally close to each other in these exchange. the closer the atoms are, the stronger the force.
Intermolecular forces generally involve weak electostatic interaction, and atoms tend to be farther from each other as in the case of hydrogen bonding (a dipole-dipole interaction), rendering the forces weaker than the intramolecular variety.dpole-dipole forces rapidly become weaker as the distance between the dipoles increases.
Intermolecular hydrogen bonding occurs between two neighbouring molecules. has high melting and boiling points, and low vapour pressure stability is high for example water, sugar
intramolecular hydrogen bonding occurs within the molecule itself. has low melting and boiling points and high vapour pressure and stability is low for example O- , salicylic acid
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