The surface tension of fluid in contact with air at 25oC is 0.51 n/m. The pressure inside a droplet is to be 0.05 N/cm2 greater than outside pressure. Determine the diameter of the droplet
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The surface tension of fluid in contact with air at 25oC is 0.51 n/m. The pressure inside a droplet is to be 0.05 N/cm2 greater than outside pressure. Determine the diameter of the droplet
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- The pressure difference between an oil pipe and water pipe is measured by a double-fluid manometer, as shown in the figure. For the given fluid heights and specific gravities, calculate the pressure difference AP= PB - PA. The specific gravities are 13.5 for mercury, 1.26 for glycerin, and 0.88 for oil. Take the standard density of water to be pw=1000 kg/m³. The heighth of mercury in the manometer is 25 cm. Water SG=1.0 Mercury SG= 13.5 55 cm The pressure difference is Glycerin SG=1,26 10 cm 12 cm Oil SG=0.88 kPa.The space between two square flat parallel plates is filled with oil. Each side of the square plate is 0.8 m. The specific weight of the oil is 9620 N/m?, the thickness of the oil film is 16.6 mm and requires a force of 170 N. Take the kinematic viscosity of the liquid as 16 stokes. Determine (i) the shear stress (i) the density of oil (ii) the dynamic viscosity in poise and (iv) the moving velocity of the upper plate. (ENTER ONLY THE VALUE IN THE BOXES BY REFERRING THE UNIT GIVEN IN BRACKET. ALSO UPLOAD YOUR HAND WRITTEN ANSWERS IN THE LINK PROVIDED) ()Shear stress in N/m2 (ii)The density of oil in kg/m (ii)The dynamic viscosity in poise (iv)The moving velocity of the upper plate in m/s.Determine the pressure difference between the inside and outside of the 0.1 mm diameter air bublle in a liquid if the surface tension at the air-liquid interface is 0.075 N/m. Express your answer in 3 decimal places and in kPa. Kindly place a clear solution and the correct answer, following the required decimal places. :)
- Determine the pressure at the interface of liquids of an open tank containing 3 m of oil (SG=0.79) and 10 cm of mercury (13.6)It is desired to determine the surface tension of a particular fluid using a capillary-rise experiment. Kienth used a 0.5 mm glass tube and found that the height of the liquid measured 30 mm with a contact angle of 30°. Kienth then performed viscosity measurements using an Ostwald viscometer. He found that the fluid takes 1.5 times slower to flow through the viscometer relative to water with a density of 1000 kg/m³ and a viscosity of 1.0 cP. It is previously known that the viscosity of the fluid is 1.35 cP. What is the surface tension of the liquid?Pgage U-shaped liquid manometer is connected to a closed tank, which contains water and air. The gage pressure in the tank is Pagge = 30 kPa. The manometric fluid is mercury, with density pmercury = 13600 kg/m³, and the water density is Pwater 1000 kg/m³. Determine the readings of the liquid manometer (h = ?), as shown on the figure, if the specific weight of the air is neglected. Air Im Water Im Im %3D h Mercury