Question

Viscosity of liquid _________ with rise in temperature.

(a) Increases

(b) Decreases

(c) Remains constant

(d) Is independent

This question was addressed to me by my college director while I was bunking the class.

This is a very interesting question from States of Matter topic in section States of Matter of Chemistry – Class 11

Answer 1

Right choice is (a) Increases

The explanation: As there is a rise in temperature the viscosity of liquid increases while the viscosity of gas decreases. In liquids, due to rise in temperature, molecules have high thermal energy so the can overcome intermolecular attractions.