Question
In: Physics
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?
Solutions
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
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genius_generous answered 2 years agoRelated Solutions
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