A tube has a diameter of 0.87 mm and is placed vertically in a liquid of...

A tube has a diameter of 0.87 mm and is placed vertically in a liquid of density 879 km/m^3, which rises 3.7 cm in the tube. The contact angle is 17 degrees between the liquid and tub. What is the surface tension of the liquid?

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Expert Solution

The relationship between surface tension and capillary rise is given by the equation,

T=rhρg/2cosθ

Where,

T = surface tension of the liquid

r= radius of the capillary tube

ρ= density of the given liquid

g = Acceleration due to gravity

θ = angle of contact between the tube and the liquid.

h= height of the capillary rise.

By direct substituting the given values, we get

T= 0.0723 N/m

Maximum informations are included in the image

genius_generous answered 1 year ago

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