Define viscosity3/17/2024 ![]() The viscosity of simple liquids (i.e, pure liquids consisting of small molecules and solutions where solute and solvent are small molecules) depends only on composition, temperature, and pressure. The proportionality constant η is termed viscosity,ĭescribed as the internal friction in the fluid as it corresponds to the resistance of the fluid to the relative motion of adjacent layers Where the applied stress σ results in flow with a velocity gradient ỳ ![]() viscous flow, occurs in accordance with Newton’s law, Viscosity implies that the liquid flows even under the smallest stress and does not return to its original shape or form once the stress is removed. More simply, it can be consideredĪs a relative property, with water as the reference material. Surface past another under specified conditions when the space between Viscosity is defined in terms of the force required to move one plane The more viscous a liquid is, the greater is the applied force required to make it flow at a particular rate. ![]() Viscosity is an expression of the resistance to flow of a system under an applied stress. More or less similar…I will try to put brief concepts of viscosity in terms of pharmaceutics which is somewhat another branch of chemistry, where it is very much applicable in drug design. ![]()
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