GEOLOGY

Detailed explanation-1: -As temperature increases, the average kinetic energy of the molecules is greater; it is more easily overcomes the attractive forces between molecules. Therefore, viscosity decreases with increasing temperature (Physics Hypertextbook, n. d.).

Detailed explanation-2: -When a liquid is heated, the kinetic energy of its molecules increases and the intermolecular attraction becomes weaker. Hence, the viscosity of a liquid decreases with increase in its temperature.

Detailed explanation-3: -Viscosity of liquid decreases with increase in temperature.

Detailed explanation-4: -The correct answer is Decreases with an increase in temperature. The viscosity of liquids decreases with an increase in temperature while it increases in the case of gases.

Detailed explanation-5: -The viscosity of liquids decreases rapidly with an increase in temperature, and the viscosity of gases increases with an increase in temperature. Thus, upon heating, liquids flow more easily, whereas gases flow more sluggishly.