Fox And Mcdonald's Introduction To Fluid Mechanics
9th Edition
ISBN: 9781118921876
Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh
Publisher: WILEY
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Textbook Question
Chapter 3, Problem 34P
Compare the height due to capillary action of water exposed to air in a circular tube of diameter D = 0.5 mm, and between two infinite vertical parallel plates of gap a = 0.5 mm.
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Calculate the magnitude of capillary effect in millimeters in a glass tube of 7 mm diameter when immersed in mercury. The temperature of the liquid is 25oC and the and the values of surface tension of mercury at 25oC is 0.51 N/m. The angle of contact for mercury is 130o
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Chapter 3 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
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- Calculate the capillary effect in milimeters in a glass tube of 4 mm diameter, when immersed in (i) water and (ii) mercury. The temperature of the liquid is 20°? and the value of the surface tension of water and mercury are 0.073575N/m and 0.51N/m respectively.The angle of contact for water is zero and for mercury is 130°C.Take density of water is equal to 998kg/m3arrow_forwardThe surface tesnion of waterr in contact with air at 20deg C is given at 0.0716 N/m. The pressure inside a droplet of water is to be 0.0147 N/cm^2 greater than the outside pressure, calculate the diameter in mm of the droplet of water.arrow_forwardThe capillary effect in a glass tube of 3.7 mm diameter, when immersed in (1) water and (2) mercury are 8.2 mm and -3.6 mm respectively. Calculate the value of surface tension in contact with air for water and mercury in N/m. Take, the contact angle for water =00 and mercury =1300.arrow_forward
- Solvearrow_forwardCalculate the capillary effect in millimetres in a glass tube of 4 mm diameter; when immersed in (i) water and (ii) mercury. The temperature of the liquid is 20°C and the values of surface tension of water and mercury at 20°C in contact with air are 0.0735 N/m and 0.51 N/m respectively. The contact angle for water 0=0° and for mercury 0= 130°. Take specific weight of water at 20°C as equal to 9790 N/m³.arrow_forwardDetermine the distance (h) in mm ,that a column of mercury in the tube will be depressed when the tube is inserted into the mercury at a room temperature of 20°C. Set ( D= 12 ) mm , density of mercury =13550 Kg/m3 , (s) surface tension 37.5x10-2 N/m , a= 42 o The Value of theata is equal to ? The Value of (h) is equal to?arrow_forward
- My frnd need ur help , soo today answer as soon as possible !! I love you guys !! U r awesomearrow_forwardThis problem uses Figure 1 .Consider a flat plate of thickness h submerged in a liquid of density (p). with the plate parallel to the free surface, as shown in the figure. The area of the top (and also bottom) surface of the place is A, and its distance to the free surface is s. Match the balancing pressures and forces to their correct expression. Figure 1 PrgsA Pr8(s+h)A Gauge pressure on the top of the plate pf'g*(s+h)*A Gauge pressure on the bottom of the plate pf*g*s Hydrostatic force on the top of the plate pf*g"(s+h) Hydrostatic force on the bottom of the plate pf'g*s*A > > >arrow_forwardAt 30ᵒC (ρ = 996kg/m3 and σ = 0.0712N/m) what diameter glass tube is necessary to keep the capillary-height change of water less than 2mm?arrow_forward
- 5. What is the pressure at the bottom of the 7.5 m tall storage tank of fluid at 25°C? Assume that the fluid is gasoline with atmospheric pressure 101 kPa on the top surface. Repeat the question for the liquid refrigerant R- 134a when the top surface pressure is 1 MPa. The densities of the liquids are: pgasoline = 750 kgm; PR-134a = 1206 kg/m2. %3Darrow_forwardThe system in Fig. is used to calculate the pressure p 1in the tank by measuring the 15-cm height of the liquid in the1-mm-diameter tube. The fl uid is at 60 ° C. Calculate thetrue fluid height in the tube and the percentage error due tocapillarity if the fluid is ( a ) water or ( b ) mercury.arrow_forwardDetermine the distance (h) in mm ,that a column of mercury in the tube will be depressed when the tube is inserted into the mercury at a room temperature of 20°C. Set ( D= 6 ) mm , density of mercury =13550 Kg/m3 , (s) surface tension 37.5x10-2 N/m , a= 57 o 2- The Value of (h) is equal to .....?arrow_forward
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