When the temperature is raised, the viscosity of the liquid decreases. This is because

Options

A. of decreased volume of solution
B. increase in temperature increases the average kinetic energy of molecules which overcomes the attractive force between them.
C. of decrease covalent and hydrogen bond forces
D. of increased attraction between molecules.

Answer

B

Explanation

Viscosity decreases with increase in temperature because of increase in average kinetic energy of molecules and decrease of attractive forces among the molecules.