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

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