what is the physical significance of viscosity?
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Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. A fluidwith large viscosity resists motion because its molecular makeup gives it a lot of internal friction.
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Physical significance of Vector Product Vector product has key importance in the study of Physics. Important physical quantities are determined with the help of vector product. Angular momentum of a body is determined by vector product.
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These properties are classified as physical properties and chemical properties. Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.
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For liquids, typically the larger the intermolecular forces (IMF) the higher the viscosity. The other factors that affect viscosity are temperature and the shape of the molecule. Higher temperatures will correspond to higher average kinetic energies and faster moving molecules. This will lead to a lower viscosity.
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Viscosity is a measure of a fluid's resistance to flow. Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. With increase in temp viscosity increases but surface tnsion decreases.
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What factors determine the physical properties of a liquid? The interplay between the disruptive motions of particles in a liquid and the attractions among the particles determines the physical properties of liquids.
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Viscosity and Specific Gravity of Liquids Viscosity - Property of a liquid that resists any force tending to produce flow. ... Specific Gravity - Direct ratio of any liquid's weight to the weight of water at 62 degrees F. Water at 62 degrees F weighs 8.33 pounds per gallon and is designated 1.0 sp.
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Viscosity is resistance to flow. For liquids, typically the larger the intermolecular forces (IMF) the higher the viscosity. The other factors that affect viscosity are temperature and the shape of the molecule. Higher temperatures will correspond to higher average kinetic energies and faster moving molecules.
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['Viscosity.', 'Surface Tension.', 'Wetting ability.', 'Specific gravity.', 'Volatility.', 'Flash Point.', 'Solubility.', 'Ability to spread or creep.']
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2 Answers. Quite simply, a viscous flow is a flow where viscosity is important, while an inviscid flow is a flow where viscosity is not important. Gases and liquids alike are considered fluids and any fluid has a viscosity.
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A physical property is any property that can be observed using the five senses or can be measured without changing the matter. Common physical properties include mass, volume, weight, color, size, and texture.
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What is the difference between velocity, density, and viscosity? ... The velocity of the fluid movement or plate for example / height of the film is the shear rate. Shear stress/Shear rate= viscosity (dynamic).
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Like specific gravity, viscosity can be altered by a change in temperature, but unlike specific gravity it can also be altered by agitation. The really important thing to keep in mind is that there is no correlation between viscosity and specific gravity. We measure specific gravity with a hydrometer.
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Matter also exhibits physical properties. Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as mass, weight, volume, and density.
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Viscosity, at its most basic, is a fluid's resistance to flow. ... So 5W-30 viscosity engine oil thickens less in the cold than a 10W-30, but more than a 0W-30. An engine in a colder climate, where motor oil tends to thicken because of lower temperatures, would benefit from 0W or 5W viscosity.
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Physical significance of Entropy. The entropy of a substance is real physical quantity and is a definite function of the state of the body like pressure, temperature, volume of internal energy. ... Entropy is a measure of the disorder or randomness in the system.
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Certain measurements using viscosity can be a precisel to the average molecular size of a polymer sample in solution. The impact of a given amount of a polymer on the viscosity of a solvent is the effect which Einstein pointed out. The "inherent viscosity" is the fundamental determination made using this effect.