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- Dictionarycrit·i·cal pres·sure/ˈkridəkəl ˈpreSHər/
noun
- 1. the pressure of a gas or vapor in its critical state.
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The critical pressure of a substance is the pressure corresponding to the critical point (or the critical state) of the substance. The critical point of a substance can be defined as the point on the temperature and pressure scale in which a liquid substance can coexist with its vapour.
The critical temperature and critical pressure of a substance define its critical point, beyond which the substance forms a supercritical fluid.
May 27, 2024 · The critical pressure of a substance is defined as the pressure required to liquefy a gas at its critical temperature. Beyond this point, no amount of pressure increase can revert the gas to a liquid state.
The temperature at which this occurs is called the critical temperature, and the pressure is called the critical pressure. The accompanying videos illustrate what happens experimentally in the case of Chlorine.
The critical pressure of a substance is the pressure at its critical point. It is the pressure required to liquefy a gas at its critical temperature. In other words, it is the minimum pressure which is necessary to make a gas at its critical temperature to convert into a liquid.
The critical temperature and critical pressure of a substance define its critical point, beyond which the substance forms a supercritical fluid.
The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied. Every substance has a critical temperature.
The temperature and pressure corresponding to this are known as the critical temperature and critical pressure. If you increase the pressure on a gas (vapor) at a temperature lower than the critical temperature, you will eventually cross the liquid-vapor equilibrium line and the vapor will condense to give a liquid.
The pressure that corresponds to the critical point of the substance is termed as the critical pressure of that substance. It is defined as the point on the temperature and pressure scale in which a liquid substance can coexist with its vapour.
Critical pressure is the temperature above which, a gas cannot be converted to liquid even by application of pressure. At the critical temperature, the pressure required to convert the gas into liquid is known as the critical pressure.
