Critical Temperature

Critical temperature is the temperature above which a gas cannot be liquefied, regardless of the pressure applied. It is the temperature at which the vapor pressure of the gas equals the critical pressure of the gas, resulting in the inability to distinguish between the liquid and gas phases. In astronautical engineering, critical temperature is an important concept in the design and operation of spacecraft propulsion systems, particularly those that use cryogenic fuels such as liquid hydrogen and liquid oxygen. The critical temperature of these fuels determines the conditions under which they can be stored and used, and affects the performance of the propulsion system. Additionally, critical temperature is a key factor in the study of thermodynamics and phase transitions in space environments.
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