The viscosity of liquids _________ with increase in temperature.


The viscosity of liquids decreases with increase in temperature.

What is Viscosity?

Viscosity is defined as the measure of the resistance of a fluid to gradual deformation by shear or tensile stress. To put it another way, viscosity refers to a fluid’s resistance to flow.

  • Viscosity is measured in Pascal seconds (Pa s).
  • If the speed of the sphere is less, the viscosity will be more.
  • The more viscous a fluid is, the more resistance it offers to any object moving inside it.
  • Although all liquids have a certain value of viscosity, the for liquids is generally considered as high or low, keeping the viscosity of water as a benchmark.
  • 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.


Honey is thicker than water and, as a result, honey is more viscous than water.

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