With increase in temperature, the viscosity of (A) both...

With increase in temperature, the viscosity of
(A) both gases and liquids increases.
(B) both gases and liquids decreases.
(C) gases increases and of liquids decreases.
(D) gases deceases and of liquids increases.

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Key Concepts

Viscosity

Viscosity is a measure of a fluid's resistance to flow, arising from internal friction between its molecules. It quantifies how easily a fluid deforms under shear stress, and is fundamental in fluid dynamics and engineering applications.

Temperature Dependence of Viscosity

The effect of temperature on viscosity varies between liquids and gases. In liquids, increased temperature typically leads to decreased viscosity because the increased molecular motion reduces intermolecular attractions. Conversely, in gases, higher temperatures increase the frequency and energy of molecular collisions, leading to an increase in viscosity.

Fluid Behavior in Different States

Understanding how different states of matter respond to temperature changes is crucial. Liquids are dominated by cohesive forces between molecules, which weaken with heat, while gases rely more on kinetic energy, where elevated temperatures enhance momentum transfer, influencing their resistive behavior to flow.

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