How does the pressure vary at depth (Z) in liquid and gaseous fluids, and explain the reasons why there are differences.
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How does the pressure vary at depth (Z) in liquid and gaseous fluids, and explain the reasons why there are differences.
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- During the experiment on the determination of surface tension of liquids by the capillary rise method, which among the following reagents is not used? * O Chloroform O Benzene O Acetone O MethanolA rotating viscometer consists of two concentric cylinders—a stationary inner cyliner of radius Ri and an outer cylinder of inside radius Ro rotating at angular velocity (rotation rate) ?o. In the tiny gap between the two cylinders is the fluid whose viscosity (? ) is to be measured. The length of the cylinders in Fig is L. L is large such that end effects are negligible (we can treat this as a two-dimensional problem). Torque (T) is required to rotate the inner cylinder at constant speed. Showing all your work and algebra, generate an approximate expression of T as a function of the other variables.Toluene is being stored in a 5 m diameter cylindrical tank under a pressure of 400 kPa (absolute). The tank drains through a 2 cm diameter line located 8 m below the liquid level of the tank, you can assume that the pressure at the outlet of this line is 1 atm. Toluene has a density of 870 kg m-3 and a viscosity of 0.56 mPa s. Using Bernoulli's equation (or otherwise) estimate the liquid velocity in the drain line when the valve is opened, and hence determine how long it will take for the tank drain. Comment as to whether or not you will think the tank will actually take more or less time to drain than the value you have calculated.
- What is the difference between dynamin and kinematic viscosity? That is the significance of these properties of liquid?lied adlo ooab od Discutions :- What is the effect of Time and the relative viscosity of the liquid? bods Give reasons for the (%) error calculated.An oil is contained between 2 identical parallel plates of 2m2area each. The top plate is pulled tothe left (-x direction) with a force of 0.33N at a velocity of 0.3 m/s. The bottom plate is pulled in theopposite direction with a force of 0.11N at a velocity of 0.1 m/s. The plates are 5mm apart. Whatis the viscosity of the oil in cP?
- A rotating viscometer consists of two concentric cylinders-a stationary inner cylinder of radius R, and an outer cylinder of inside radius Ro rotating at angular velocity (rotation rate) wo. In the tiny gap between the two cylinders is the fluid whose viscosity (u) is to be measured. The length of the cylinders (into the page in Figure 1) is L. L is large such that end effects are negligible (we can treat this as a two-dimensional problem). Torque (T) is required to rotate the outer cylinder at constant speed. Showing all your work and algebra, generate an approximate expression of T as a function of the other variables. Liquid: p, Ro Ri Stationary inner cylinder Rotating outer cylinder Figure 1 WoHow much time would be required to inject a 1.0-cm-long sample with twice the viscosity of water into a 40-cm-long capillary at 2.0x104 Pa?(a) What is the cause of pressure that is exerted byfluids on the walls of containers that holds them?(b) Consider a fluid in any container of volume V. If ithas some pressure p1 at vertical position y1, will thepressure p2 at some vertical position y2 below y1 beequal, less or greater than p1? Why is it so?(c) Water enters a house through a pipe with an insidediameter of 2.0 cm at an absolute pressure of 4.0 ×105 Pa (about 4 atm). A 1.0-cm-diameter pipe leadsto the second-floor bathroom 5.0 m above. Whenthe flow speed at the inlet pipe is 1.5 m/s, find theflow speed, pressure, and volume flow rate in thebathroom.
- If the pressure of a substance is increased during a boiling process, will the temperature also incre ase or will it remain constant? Why?As the temperature of the hydrogen gas decreases of same gas decreases. Surface tension O Specific volume O Capillarity O VviscosityFor a gas, which of the following does not vary with temperature? - the gas soecific weight - the gas dynamic viscosity - the gas specific volume - the gas constant R - the gas density