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Question

What is the dielectric constant of water.


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Solution

Dielectric constant

  • A dielectric material is a material that has the ability to store an electrical charge but has a poor electrical conductivity
  • The dielectric constant of a substance is defined as the ratio of the permittivity of the substance to the permittivity of the free space
  • It has no unit since it is a ratio of the same quantity of different substance

Dielectric constant of water

  • The dielectric constant of water is 78.39. because of this high dielectric constant, water can dissolve ionic compounds or polar compounds in it.
  • Hence water is regarded as a universal solvent

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