Q Viscosity of a liquid arises due to strong intermolecular forces existing between the molecules Stronger the intermolecular - Chemistry - Chemistry in Everyday Life

Question

Q Viscosity of a liquid arises due to strong intermolecular forces
existing between the molecules Stronger the intermolecular forces,
greater is the viscosity Name the intermolecular forces existing in
the following liquids and arrange them in the increasing order of
their viscosities Also give, reason for the
assigned order
water, hexane and glycerine

Prateek Grover · Accepted Answer

Dear Student,

Please find below the solution of your asked query:

The increasing order of viscosity on the basis of Inter-molecular
forces is-

Hexane < Water <
Glycerine

Reason-

The Inter-molecular forces present in case of Hexane are
London forces which are comparatively
weaker forces of attraction
While in water and glycerine, stronger Inter-molecular forces
are present i e Hydrogen bonding And the extent of
Hydrogen bonding is higher in case of glycerine (because of the
presence of three -OH groups) than that in case of
water

Hope this information clears your doubts about the topic

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