The S.I unit of viscosity is:

The SI unit of viscosity is Nm-2s.

What is viscosity

Viscosity is an important property of fluid foods. It is defined as the internal friction of a liquid or its ability to resist flow. Viscosity is also a characteristic of the texture of food. Viscosity is a measure of a fluids’ propensity to flow. There are two kinds of viscosity. They are kinematic and dynamic.

  • Dynamic viscosity is the relationship between shear stress and the shear rate in a fluid.
  • Kinematic viscosity is the relationship between viscous and inertial forces in a fluid.

Examples:

  1. Honey.
  2. Engine oil.
  3. Cough syrup.
  4. Corn starch solution.
  5. Milk.
  6. Castor oil.
  7. Thin oils have lower viscosity and pour more easily at low temperatures than thicker oils with a higher viscosity.

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