What is viscous liquids? plz give full information about it.
Answers
Answer:
Viscosity of often referred to as the thickness of a fluid. You can think of water (low viscosity) and honey (high viscosity). However, this definition can be confusing when we are looking at fluids with different densities.
At a molecular level, viscosity is a result the interaction between the different molecules in a fluid.This can be also understood as friction between the molecules in the fluid. Just like in the case of friction between moving solids, viscosity will determine the energy required to make a fluid flow.
Viscosity can be measured using various methods from do-it-yourself methods to viscometers that are available in the market.
DIY Method to Measure Viscosity:
You can think in terms of different fluids taking different times to, for example, pour out of a cup. Water will pour out of a glass in a fraction of a second and will take the shape of the receiving container in just as short of a time. On the other hand, a high viscosity fluid like honey would take minutes to pour out and the interface between honey and air would take just as long to settle. You might have notice that I have been talking about time when trying to establish which of those two fluids is more viscous. That's what we refer to as a measurement of kinematic viscosity or how fast does a fluid flow for a given force applied to it. In this example, the applied force is gravity.
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Explanation:
Answer:
the terms viscous liquid, supercooled liquid, and glassforming liquid are often used interchangeably to designate liquids that are at the same time highly viscous, can be or are supercooled, and able to form a glass.
The mechanical properties of glass-forming liquids depend primarily on the viscosity. Therefore, the following working points are defined in terms of viscosity. The temperature is indicated for industrial soda lime glass:
designation viscosity (Pa.s) temperature (deg C, in soda lime glass)
melting point[2] 101 1300
working point 103 950-1000
sink point 103.22
flow point 104 ~900
softening point (Littleton)[3] 106.6 600
softening point (dilatometric) ~1010.3 >~500
annealing point ~1012 <~500
transition point 1012..1012.6 <~500
strain point ~1013.5 <~500
a widespread classification, due to chemist Austen Angell, a glass-forming liquid is called strong if its viscosity approximately obeys an Arrhenius law In the opposite case of clearly non-Arrhenius behaviour the liquid is called fragile.
Explanation:
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