12/24/2023 0 Comments Viscosity definition in chemistry![]() ![]() It can be computed with the following formula: Viscosity ( force distance between two layers of fluid ) / ( cross. This page titled 4.2: Viscosity of Polymers is shared under a CC BY-NC 3.0 license and was authored, remixed, and/or curated by Chris Schaller. Viscosity is the ratio of the shear stress to the velocity of the gradient. Explain why the two values are so different. The degree to which a fluid resists flow under an applied force, measured by the tangential friction force per unit area divided by the velocity gradient. ![]() In other words, a fluid has zero shear modulus. A fluid is a material that flows or continuously deforms under a shear (tangential stress). ![]() Note the correlation between the surface tension of a liquid and the strength of the intermolecular forces: the stronger the intermolecular forces, the higher the surface tension. Ethanol (CH 3 CH 2 OH) has an 'absolute viscosity' of 1.095 centipoise, whereas ethylene glycol (HOCH 2 CH 2 OH) has an absolute viscosity of 16.2 centipoise. A fluid is a material that flows under a shear force. ![]()
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