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How does viscosity of a fluid vary with temperature ?

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(a) How does viscosity of a fluid vary with temperature ?

(b) Cite examples where surface tension effects play a prominent role.

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viscosity decreases as temperature of a fluid increases. As temperature rises, the kinetic energy of the molecules increases. The molecules become more energetic to move freely and are loosely bonded to each other. The reverse is true for when temperature drops.

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