Increase in kinetic energy can overcome intermolecular forces of attraction. How will the viscosity of liquid be affected by the increase in temperature ?

Options

A. Increase
B. No effect
C. Decrease
D. No regular pattern will be followed

Answer

C

Explanation

With increase of temperature, the kinetic energy of the molecules of liquid increases which can overcome the intermolecular forces. Hence, the liquid starts flowing.
In other words the viscosity of a liquid decreases with increase in temperature. It has been found that the decrease is 2% per degree rise in temperature.