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Viscosity is a fluid's resistance to flow. Fluids becomes less viscous as the liquid's temperature increases, becoming more viscous as the fluid gets cooler.

A viscous fluid is sticky, thick and syrupy to a greater or lesser extent.

Examples

Treacle is quite viscous, but water is not.

Hot engine oil is less viscous ('thinner') and runs more quickly and smoothly than cold engine oil.

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13y ago
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14y ago

It is the measure of fluid resistance to flow. A fluid with more viscosity flows slowly and with less viscosity flows easily.

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Q: What is the definition of viscosity?
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What the definition for viscosity?

Viscosity is the state of being thick, sticky, and semifluid in consistency.


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What has Low density and high viscosity?

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What affects the viscosity of a molten material?

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