As the temperature of a liquid increases, its viscosity increases stays the same decreases

Option (c) is the correct answer.

Explanation:

Viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

For example, honey has high viscosity.

But when we increase the temperature then there occurs more number of collisions between the molecules. Due to this there will be increase in kinetic energy of the molecules and they will be able to move the fluid easily.

As,    Kinetic energy =

Thus, we can conclude that as the temperature of a liquid increases, its viscosity decreases.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.