What does coefficient of viscosity depend on?

What does coefficient of viscosity depend on?

Coefficient of viscosity does not depend on terminal velocity. Viscous force acts in opposite direction of velocity. Viscous force is directly proportional to terminal velocity. Coefficient of viscosity depends on density of the liquid.

What do you understand by viscosity ‘? On what factors does the coefficient of viscosity of a liquid depend?

viscosity: The Coefficient of Viscosity Experiments have shown that the coefficient of viscosity of liquids decreases with increasing temperature, while the coefficient of viscosity of gases increases with increasing temperature.

What do you understand by viscosity?

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.

What are the two factors viscosity depends on?

Temperature, pressure (at very high value) and concentration are the factors on which viscosity of a fluid depends.

Is viscosity and coefficient of viscosity same?

No, it is different. Viscosity is a resistance induce between two adjacent layer of liquid while it flows. While coefficient of viscosity is tendency of that resistance.

What do you mean by the term coefficient of viscosity?

The coefficient of viscosity is defined as the force of friction that is required to maintain a difference of velocity of 1cm/s between parallel layers of fluid. The unit is usually expressed in poise or centipoise.

What is viscosity meter?

A viscometer, viscosity meter or rheometer is a measuring instrument used to determine a fluid’s internal flow resistance or viscosity. The term viscosity typically refers to shear viscosity, i.e., how a material reacts to being sheared. A viscometer can be an important component in process and quality control.

What is viscosity in physics class 11?

Viscosity. The property of a fluid by virtue of which an internal frictional force acts between its different layers which opposes their relative motion is called viscosity.

What is viscosity and factors affecting viscosity?

What factors affect viscosity? 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.

What are the factors affecting coefficient of viscosity?

Increase in temperature decreases viscosity. Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.

• Increase in temperature decreases viscosity.
• Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.

What is the difference between viscosity and coefficient of viscosity class 11?

In other words, every layer offers some resistance or friction to the layer immediately below it. This force of friction which one part of the liquid offers to another part of the liquid is called viscosity. where η is a constant known as coefficient of viscosity. dv/dx is called velocity gradient.

Which is the correct formula for the coefficient of viscosity?

viscosity: The Coefficient of Viscosity. The ratio of the shearing stress to the velocity gradient is a measure of the viscosity of the fluid and is called the coefficient of viscosity η, or η= Fx / Av. The cgs unit for measuring the coefficient of viscosity is the poise.

How is viscosity related to the resistance to flow?

An important rheological measurement that is closely related to the resistance to flow is called viscosity. The Viscosity of a fluid described as the resistance of liquid. For example liquids like water, alcohol, petrol and more flow freely and faster than glycerin solution, honey, and oil.

Which is more viscose water or air or air?

Viscosity. The more viscous a fluid is, the more resistance it offers to any object moving inside it. Although all liquids have a certain value of viscosity, the for liquids is generally considered as high or low, keeping the viscosity of water as a benchmark. For example viscosity of water is 0.001 Pa s, that of air is 0.000019 Pa s and that…

Which is an example of a viscosity property?

For example liquids like water, alcohol, petrol and more flow freely and faster than glycerin solution, honey, and oil. This is because of its physical property and is called viscosity. In simple words, it explains the fluid’s flow resistance. The viscosity is calculated in terms of the coefficient of viscosity.