Calculate the capillary effect in mm in a glass tube of 4mm diameter, when immersed in (1)water, (2)mercury. The temperature of the liquid is 25°C and the values of surface tensions of water and mercury at 25°C in contact with air is 0.0725 and 0.6N/m respectively. The angle of contact for water is

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter9: Heat Transfer With Phase Change
Section: Chapter Questions
Problem 9.26P
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Calculate the capillary effect in mm in a glass
tube of 4mm diameter, when immersed in
(1)water, (2)mercury. The temperature of the
liquid is 25°C and the values of surface
tensions of water and mercury at 25°C in
contact with air is 0.0725 and 0.6N/m
respectively. The angle of contact for water is
0° and 130° for mercury . Take the density of
water 1000 kg/m³ , specific gravity of mercury
is 13.6.
The capillary effect of water in mm is equal
to=
The capillary effect of mercury in mm is equal
to=
Transcribed Image Text:Calculate the capillary effect in mm in a glass tube of 4mm diameter, when immersed in (1)water, (2)mercury. The temperature of the liquid is 25°C and the values of surface tensions of water and mercury at 25°C in contact with air is 0.0725 and 0.6N/m respectively. The angle of contact for water is 0° and 130° for mercury . Take the density of water 1000 kg/m³ , specific gravity of mercury is 13.6. The capillary effect of water in mm is equal to= The capillary effect of mercury in mm is equal to=
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