What is critical temperature? What is the significance of...

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Key Concepts

Critical Temperature

Critical temperature is defined as the highest temperature at which a gas can be converted into a liquid solely by applying pressure, regardless of how high the pressure is. At temperatures above the critical point, the thermal energy of the molecules is too high for intermolecular forces to bring them close enough to condense into a liquid state.

Condensation of Gases

The condensation process involves the transition of a substance from its gaseous phase to its liquid phase. The significance of the critical temperature in condensation is that it sets an upper thermal limit; a gas must be below its critical temperature for pressure to induce condensation. Above this temperature, even significant increases in pressure cannot overcome the kinetic energy of the gas molecules, preventing the formation of a liquid phase.

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