Question

What is the effect of pressure on (i) viscosity, (ii) surface tension, (iii) density of liquid ?

Answer 1

i) As the pressure increases, the viscosity of a fluid also increases. so they are directly proportional.
ii) As pressure increases, surface tension decreases. they are inversely proportional.
iii) As pressure increases, the density of a liquid increases. they are directly proportional.

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Answer 2

Answer:

Solution : (i) In case of liquid , viscosity increase with increase in density and for gases, it decreases with increase in density. (ii) with the rise in temperature, the viscosity of liquid decrease while that of gases increases. ... The viscosity of water decreases with the increase in pressure.