which statement accurately describes viscosity?
Accessibility StatementFor more information contact us atinfo@libretexts.org. Pseudoplastic fluids are also known as shear thinning fluids. Solved Please answer questions 1-5 1. Which of the following - Chegg Liquids have characteristic volumes that do not change greatly with changes in pressure. The most common types of these viscometer include Redwood, Engler, Saybolt, and Ford cup viscometers. Take boiling water for example. These measurements are continuous and instantaneous. Relationship between pascal-second to poise: 10 P = 1 kgm?1s?1 = 1 Pas 1 cP = 0.001 Pas = 1 mPas. But as soon as you start to stir the slurry, it hardens. Create your account, 22 chapters | All rights reserved. Copolymer Types, Structure & Properties | What is Copolymer? Viscosity denotes opposition to flow. Answer and Explanation: 1 Become a Study.com member to unlock this answer! If the fluid is a Newtonian fluid, then it is a direct proportion between the shear rate and viscosity. D. The unit of kinematic viscosity in the centimetre-gram-second (CGS) system, called the stokes in Britain and the stoke in the U.S., is named for the British physicist Sir George Gabriel Stokes. It can also be described in terms of a fluid's thickness. High School answered expert verified Which statement accurately describes viscosity? Laura has a Masters of Science in Food Science and Human Nutrition and has taught college Science. On the other hand, if you run pudding through a funnel, it may take a little longer. For many fluids the tangential, or shearing, stress that causes flow is directly proportional to the rate of shear strain, or rate of deformation, that results. - Explanation & Examples, Pressure: Definition, Units, and Conversions, Hydrostatic Pressure: Definition, Equation, and Calculations, Fluid Mass, Flow Rate and the Continuity Equation, Bernoulli's Principle: Definition and Examples, Bernoulli's Equation: Formula, Examples & Problems, Buoyant Force: Definition, Equation & Examples, Johann Bernoulli's Contributions to Math: Biography & Concept, What is Viscosity? D. VISCOSITY can be defined as a substance's ability to resist flow. Liquids which flow very slowly, like glycerin or honey, have high viscosities. Another more advanced design of measuring viscosity known as the Ostwald Viscometer that is much more accurate than dropping a metal ball. The viscosity is calculated with Equation \(\ref{1}\). Another example of this is running across wet sand. Thermal Conductivity | Definition, Formula & Examples. Items with densities lower than water will. All right, let's take a moment or two to review. I highly recommend you use this site! Viscosity is a measure of a fluid resistance to flow. Viscosity denotes opposition to flow. is the Greek letter lambda and represents the length of a blood vessel. Therefore, F/A is another way to refer to viscosity. When the intermolecular forces of attraction are strong within a liquid, there is a larger viscosity. What is viscosity? In a typical set-up, fluid in a cylindrical reservoir is displaced by a piston. There are many examples of this type of fluid; one is quicksand. B. One may ask the question of what is actually going on in the liquids to make one type flow faster and the other more resistant to flow such as the comparison between honey and water earlier. General Chemistry: Principles & Modern Applications. Fluids that behave in this way are called Newtonian fluids in honour of Sir Isaac Newton, who first formulated this mathematical description of viscosity. United Sates of America: Hemisphere Publishing Corporation, 1989. viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighbouring portions relative to one another. It helped me pass my exam and the test questions are very similar to the practice quizzes on Study.com. lessons in math, English, science, history, and more. All other trademarks and copyrights are the property of their respective owners. Natarajan, G, and Viswanath, D. Data Book On The Viscosity of Liquids. This structure, depending on the thickness of the layer and its viscosity, is called capsule, microcapsule, or slime layer.The capsule serves a protective function for the bacterium by acting as a "barrier . The more stirring force that is added to the corn starch slurry, the more viscosity it will have. The reciprocal property of viscosity is called fluidity, a measure of the ease of flow. . The dimensions of dynamic viscosity are force time area. How much energy would be released if 0.00023 kg of plutonium were converted to energy through radioactive decay. Lassen, California, in 1915-16. Liquids whose molecules are polar or can form hydrogen bonds are usually more viscous than similar nonpolar substances. An Ostwald Viscometer consists of two reservoir bulbs and a capillary tube. Keep in mind that the magnet has a high amount of vertical force the closer it is to the steel. A simulation of liquids with different viscosities. The thickness of a substance is called viscosity. Young, James A. While every effort has been made to follow citation style rules, there may be some discrepancies. Molasses, for example, has a greater viscosity than water. Specific Heat Capacity | Definition, Formula & Calculation, Statically Determinate | Definition, Frame Analysis & Examples. B. See Answer Question: Please answer questions 1-5 1. For example: for every 1 Pascal second (Pa s) increase in viscosity of water, the shear rate must increase by 0.00089 s. So, we multiply the shear rate by 'n', which is equal to 0.00089 Pa. Ignore the magnet horizontal force. Once the value of K is known, the viscosity can be determined by measuring the amount of time the test liquid flows between the two graduated marks. An error occurred trying to load this video. Fluids can be classified either as Newtonian or Non-Newtonian. divergent convergent transform divergent Where do most shield volcanoes form? If you have ever painted a wall, you have seen how the paint spreads out over the wall. Describe how you might change the procedure to avoid these problems. Which statement accurately describes viscosity? - Brainly.com A freelance tutor currently pursuing a master's of science in chemical engineering. Physical Methods in Chemistry and Nano Science (Barron), { "2.01:_Melting_Point_Analysis" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass230_0.
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