define viscosity with formula
Answers
Explanation:
viscosity is a measured of a fluid's resistance to flow.
It is measured in internal fiction of a moving fluid .
A fluid with large viscosity resist motion because its molecular makeup gives it a lot of internal friction......
It is measured in term of ratio of shearing stress to the velocity gradient of fluid . If a sphere is dropped into a fluid , the viscosity can be determined using the formula :
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Answer:
Viscosity
Viscosity is a measure of a fluid’s resistance to flow.
The SI unit of viscosity is poiseiulle (PI). Its other units are newton-second per square metre (N s m-2) or pascal-second (Pa s.) The dimensional formula of viscosity is [ML-1T-1].
The viscosity of liquids decreases rapidly with an increase in temperature, and the viscosity of gases increases with an increase in temperature. Thus, upon heating, liquids flow more easily, whereas gases flow more slowly. Also, viscosity does not change as the amount of matter changes, therefore it is an intensive property.
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Explanation: