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 Find the capillarity rise or fall if a capillary tube of diameter .03m is immersed in hypothetical fluid with specific gravity 6.5, surface tension 0.25 N/m and angle of contact 147°.
  • a)
    0.44mm fall
  • b)
    0.88mm fall
  • c)
    0.44mm rise
  • d)
    0.88mm rise
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Find the capillarity rise or fall if a capillary tube of diameter .03m...
Explanation: h=4*cosθ*σ/ρ*g*d
=4*cos147*0.25/6.5*1000*9.81*0.03
=-0.44 mm i.e 0.44 mm fall.
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Most Upvoted Answer
Find the capillarity rise or fall if a capillary tube of diameter .03m...
To determine the capillarity rise or fall, we can use the Young-Laplace equation:

h = (2T*cosθ)/(ρ*g*r)

Where:
h = capillarity rise or fall
T = surface tension of the fluid (0.25 N/m)
θ = angle of contact (147°)
ρ = density of the fluid (specific gravity * density of water)
g = acceleration due to gravity (9.8 m/s^2)
r = radius of the capillary tube (diameter/2)

First, let's calculate the density of the fluid:
Density of water = 1000 kg/m^3
Specific gravity = 6.5
Density of the fluid = specific gravity * density of water
Density of the fluid = 6.5 * 1000 kg/m^3 = 6500 kg/m^3

Next, let's calculate the radius of the capillary tube:
Diameter = 0.03 m
Radius = Diameter/2 = 0.03 m/2 = 0.015 m

Now we can substitute the values into the equation to calculate the capillarity rise or fall:

h = (2 * 0.25 N/m * cos(147°)) / (6500 kg/m^3 * 9.8 m/s^2 * 0.015 m)

Using a calculator, we can find:

h ≈ 0.00025 m

Therefore, the capillarity rise or fall of the capillary tube immersed in the hypothetical fluid is approximately 0.00025 meters.
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Find the capillarity rise or fall if a capillary tube of diameter .03m is immersed in hypothetical fluid with specific gravity 6.5, surface tension 0.25 N/m and angle of contact 147°.a)0.44mm fallb)0.88mm fallc)0.44mm rised)0.88mm riseCorrect answer is option 'A'. Can you explain this answer?
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Find the capillarity rise or fall if a capillary tube of diameter .03m is immersed in hypothetical fluid with specific gravity 6.5, surface tension 0.25 N/m and angle of contact 147°.a)0.44mm fallb)0.88mm fallc)0.44mm rised)0.88mm riseCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Find the capillarity rise or fall if a capillary tube of diameter .03m is immersed in hypothetical fluid with specific gravity 6.5, surface tension 0.25 N/m and angle of contact 147°.a)0.44mm fallb)0.88mm fallc)0.44mm rised)0.88mm riseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Find the capillarity rise or fall if a capillary tube of diameter .03m is immersed in hypothetical fluid with specific gravity 6.5, surface tension 0.25 N/m and angle of contact 147°.a)0.44mm fallb)0.88mm fallc)0.44mm rised)0.88mm riseCorrect answer is option 'A'. Can you explain this answer?.
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