Learn vocabulary, terms, and more with flashcards, games, and other study tools. K-Value Definition: (1) A number calculated from dilute solution viscosity measurements of a polymer; sometimes used to indicate likely degree of polymerization/molecular size. Return to top of page. Physical Chemistry Lecture 3 Viscosity and sedimentation Viscosity Fluids resist a gradient of flow Tries to achieve constant speed across the sample This resistance creates a force called the viscous drag viscosity coefficient (or just viscosity) Viscosity is measured in poise (10-1 kg m-1 s-1) dx dv Fdrag A Measurement of viscosity Chemistry Dictionary. Dictionary Thesaurus Examples Sentences Quotes Reference Spanish Word … It is commonly perceived as "thickness", or resistance to pouring. Viscosity definition is - the quality or state of being viscous : a sticky or glutinous consistency. Viscosity is a measure of the resistance of a fluid to deformation under shear stress. The definition of viscosity can be written as: The viscosity of a fluid is a measure of its resistance to deformation at a given rate. What is Viscosity? In other words, viscosity describes a fluid’s resistance to flow. basic-of-lubricants-lubrication. Simply put, viscosity refers to the “fluid’s resistance to flow.” Viscosity also describes the internal friction of a moving liquid. In dynamic viscosity tangential force is required to move one horizontal plate of a fluid with respect to another. Hydrocarbons are compounds which contain hydrogen and carbon only. Viscosity is the resistance to flow, or how thick a fluid is. Each data set is analyzed in order to determine the activation energy (Ea) for viscous flow of the given liquid. Simply put, we can say that honey is thicker than water; in turn, honey is more viscous than water. Measurement of the flow properties of a material expressed as its resistance to flow. Looks like you’ve clipped this slide to already. Particle size (bigger = bulkier = increase in viscosity) ...| PowerPoint PPT presentation | free to view. How to use viscosity in a sentence. Goal: The viscosity of three simple liquids is given over an extended temperature range. Definition of Viscosity. Menu. $\endgroup$ – andselisk ♦ Oct 17 '17 at 15:28 articles repository. Prerequisites: The tasks associated with this assignment can be carried out with an introductory level knowledge of chemistry. Viscosity is thickness, or a measure of how resistant a liquid is to flowing. For exact definitions of various viscosities open IUPAC Gold Book and search for "viscosity" (left toolbar) – you will see it's the same physical terms. [SEMATECH] Search the Dictionary for More Terms. The formula is: Where: N S = viscosity of solution N 0 = viscosity of solvent c = concentration in grams/mL Kinematic Viscosity Start studying What is Viscosity?. 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