calculate the height to which water will rise in a capillary tube of 1.5mm diameter, surface tension of water is 0.0074 N/m.
Asked by abhilipsa satpathy
| 31st Dec, 2013,
08:15: PM
Expert Answer:
For calculating the height to which the water will rise to capillary action,
h = 4σcosθ / ρ.g.d
here
cosθ = 1
σ = 7.4 x 10-3 N/m
ρ = 1000 kg/m3
g = 9.81 m/s2
d = 1.5mm = 1.5 x 10-3 m
So,
h = (4 x 7.4 x 10-3 x 1) / (1000 x 9.81 x 1.5 x 10-3)
or
h = 29.6 x 10-3 / 14.715
Thus, we get
h = 2.011 x 10 -3 m = 2.011 mm
For calculating the height to which the water will rise to capillary action,
h = 4σcosθ / ρ.g.d
here
cosθ = 1
σ = 7.4 x 10-3 N/m
ρ = 1000 kg/m3
g = 9.81 m/s2
d = 1.5mm = 1.5 x 10-3 m
So,
h = (4 x 7.4 x 10-3 x 1) / (1000 x 9.81 x 1.5 x 10-3)
or
h = 29.6 x 10-3 / 14.715
Thus, we get
h = 2.011 x 10 -3 m = 2.011 mm
Answered by Faiza Lambe
| 31st Dec, 2013,
11:46: PM
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