A-Nutrients dissolved in water are carried to upper parts of plants by tiny tubes partly because of the capillary effect (see Figure 1). Determine how high the water solution will rise in a tree in a 2.6x10-6 m diameter tube as a result of the capillary effect. Treat the solution as water at 20°C with a contact angle of 15°.

A-Nutrients dissolved in water are carried to upper parts of plants by tiny tubes partly because of the capillary effect (see Figure 1). Determine how high the water solution will rise in a tree in a 2.6x10-6 m diameter tube as a result of the capillary effect. Treat the solution as water at 20°C with a contact angle of 15°.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.56P

See similar textbooks

Similar questions

The 500 kg load on the hydraulic lift is to be raised by pouring oil (p = 780 kg/m^3) into a thin tube (Figure 3). Determine how high h should be in order to begin to raise the weight.
Nutrients dissolved in water are carried to upper parts of plants by tiny tubes partly because of the capillary effect. Determine how high the water solution will rise in a tree in a 0.0026-mm-diameter tube as a result of the capillary effect. Treat the solution as water at 20°C with a contact angle of 15°. The density of water is 1000 kg/m3.
Water at 30ºC is able to climb up a clean glass of 0.2 mm diameter tube due to surface tension.The water-glass angle is 0º with the vertical. How far up the tube does the water climb? At 30 ºC water surface tension = 0.0718 N/m and density = 996 kg/m3
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. %3D
8.2 A 0.03 cm internal diameter glass capillary tube contains gas. oil. and water. thus forming two interfaces. namely. gas—oil and oil-water. The contact angles for these two interfaces are 35° and 25°. while the surface and IFTs are 15 and 30 mN/m, respectively. Calculate the gas-water capillary pressure.
A glass tube of 8 mm ID is immersed in a liquid at 20°C. The specific weight of the liquid is 20601N/m3 . The contact angle is 60°. The capillary rise was 1.82mm. Determine the value of surface tension
A thin spherical shell 1 m in diameter with its wall of 12mm thickness is filled with a fluid at atmospheric pressure. Take E = 200 GN/m2 and Poisson’s ratio 0.3. The increase in diameter is
A large, cylindrical water tank with diameter 3.20 m is on a platform 2.00 m above the ground. The vertical tank is open to the air and the depth of the water in the tank is 2.00 m. There is a hole with diameter 0.560 cm in the side of the tank just above the bottom of the tank. The hole is plugged with a cork. You remove the cork and collect in a bucket the water that flows out the hole. When 1.00 gal of water flows out of the tank, what is the change in the height of the water in the tank?Express your answer in millimeters. How long does it take you to collect 1.00 gal of water in the bucket?Express your answer in seconds.
The clutch system shown in the figure is used to transmit torque through a 2 mm thick oil film with μ = 0.38 N.s/m2 between two identical 30 cm diameter disks. When the driving shaft rotates at a speed of 1450 rpm, the driven shaft is observed to rotate at 1398 rpm. Determine the transmitted torque.
The clear plastic bottles used for carbonated beverages (sometimes also called “soda,” “pop,” or “soda pop”) are made from poly(ethylene terephthalate) (PET). The “fizz” in pop results from dissolved carbon dioxide (CO2); because PET is permeable to CO2, pop stored in PET bottles will eventually go “flat” (i.e., lose its fizz). A 20-oz. bottle of pop has a CO2 pressure of about 485 kPa inside the bottle, and the CO2 pressure outside the bottle is 0.6 kPa. The Permeability Constant of the PET bottle is 0.23 x 10^-13 cm3@STP.cm/cm2.s.Pa. Note: assume that each bottle has a surface area of 500 cm2 and a wall thickness of 0.07 cm. If the bottle must lose 750 (cm3 STP) of CO2 before the pop tastes flat, what is the shelf life in days for a bottle of pop? Round your answer to 0 decimal places.
The clear plastic bottles used for carbonated beverages (sometimes also called “soda,” “pop,” or “soda pop”) are made from poly(ethylene terephthalate) (PET). The “fizz” in pop results from dissolved carbon dioxide (CO2); because PET is permeable to CO2, pop stored in PET bottles will eventually go “flat” (i.e., lose its fizz). A 20-oz. bottle of pop has a CO2 pressure of about 570 kPa inside the bottle, and the CO2 pressure outside the bottle is 7 kPa. Assuming conditions of steady-state, calculate the diffusion flux in cm3 at STP/cm2.s of CO2 through the wall of the bottle. The Permeability Constant of the PET bottle is 0.23 x 10^-13 cm3@STP.cm/cm2.s.Pa. Note: assume that each bottle has a surface area of 500 cm2 and a wall thickness of 0.07 cm. Answer in Scientific Notation example 1.1e-12. Round your answer to 2 significant figures.
A rectangular gate 1.8 m high by 1.20 m wide is mounted on the vertical wall of an open rectangular tank filled with oil. The top of the gate is 1.2 m below the surface of oil. What is the minimum force F applied at the top edge of the gate required to keep it close assuming the gate is hinged at the bottom edge. (S=0.8)