How do intermolecular forces of attraction originate ?

Expert Solution

Every molecule or an atom exerts a force of attraction or repulsion on the other constituents. This force is known as the intermolecular force(IMFs). In other words IMFs are the various forces of attraction that may exist between the atoms and molecules of a substance due to electrostatic phenomena. These forces are responsible for holding together of a substance.
These molecular forces originate from the attraction between permanent dipoles (dipolar molecules) and are temperature dependent. They occur whenever two particles come close to each other.

The four prominent types are:

Strong ionic attraction. Recall lattice energy and its relations to properties of solid. ...
Intermediate dipole-dipole forces. ...
Weak London dispersion forces or van der Waal's force These forces alway operate in any substance. ...
Hydrogen bond. ...
Covalent bonding. ...
Metallic bonding.

queen_honey_blossom answered 1 year ago

What are cohesive forces? The intermolecular attraction forces that make molecules of one substance repel each...

What are cohesive forces? The intermolecular attraction forces that make molecules of one substance repel each other. The forces that make some molecules denser than others. The intermolecular attraction forces that make molecules of one substance stick together. The forces that attract positive and negative particles to each other.

Hydrogen bonding increases the intermolecular forces of attraction and hence increased hydrogen bonding increases the solubility...

Hydrogen bonding increases the intermolecular forces of attraction and hence increased hydrogen bonding increases the solubility in a liquid. For example, Methyl alcohol which is organic in nature is miscible with water due to hydrogen bonding. For the same reason acetic acid is soluble in water due to hydrogen bonding. Acetic acid (CH3COOH) has got only one carbon atom and steric hindrance of the methy group is low which permits water (solvent) to get attached to solute. Can you elaborate...

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How do intermolecular forces of attraction originate ?

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