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Viscosity and pressure relation

  1. Jan 6, 2014 #1
    i know the relation between these two.

    with increase in pressure, the viscosity of liquids (expect water] increases while that of gases is practically independent of pressure.

    The viscosity of water decreases with increase in pressure.

    i want to know the reason behind this.
  2. jcsd
  3. Jan 6, 2014 #2

    it is a bit of chemistry not physiics as the pressure increases the cohessive forces increases which in turn decreases the viscosity of liquuid as
    cohesive force doesnt slow water to flow easily among its own.
  4. Jan 6, 2014 #3
    Not everything is same iin chem and phy some differences are also there..
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