[Q&A] 2017.8.2
Thread Content
What is critical pressure? Answer: The gas and liquid phases of a substance are in equilibrium, and the density of the gas phase is equal to that of the liquid phase. The gas-liquid interface disappears; this state is known as the critical state. The pressure at the critical state is called the critical pressure of that substance. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg Petrochemical Zone---“Creative Ideas for Energy Conservation” event (Phase II is currently in progress). http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1666758 (Source: Haichuan Chemical Engineering Forum) “My Technical Innovations” in the coal chemical industry in 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html (Source: Haichuan Chemical Engineering Forum). “Lessons from Others” event for registered chemical engineers to share their experiences: http://bbs.hcbbs.com/thread-1808158-1-1.html (Source: Haichuan Chemical Engineering Forum)
The critical pressure is the pressure at which a substance is in a critical state; this pressure is also the saturated vapor pressure of the liquid at its critical temperature.
The pressure of a substance when it is in a critical state. It is the minimum pressure required to liquefy a gas at the critical temperature. That is, the saturated vapor pressure of a liquid at its critical temperature. At the critical temperature and critical pressure, the molar volume of a substance is called the critical molar volume. The state at the critical temperature and critical pressure is called the critical state.
The pressure at the critical temperature is called the critical pressure, while the highest temperature at which a gas can be liquefied (or the lowest temperature at which a liquid can be vaporized) is called the critical temperature
The minimum pressure required for vaporization at a substance’s critical temperature
The pressure of a substance when it is in a critical state. It is the minimum pressure required to liquefy a gas at the critical temperature. That is, the saturated vapor pressure of a liquid at its critical temperature.
The pressure of a substance when it is in a critical state. It is the minimum pressure required to liquefy a gas at the critical temperature. That is, the saturated vapor pressure of a liquid at its critical temperature. At the critical temperature and critical pressure, the molar volume of a substance is called the critical molar volume. The state at the critical temperature and critical pressure is called the critical state.
The gas and liquid phases of a substance are in equilibrium, with the density of the gas phase equal to that of the liquid phase. The gas-liquid interface disappears; this state is known as the critical state. The pressure at the critical state is called the critical pressure of that substance.
The pressure of a substance at its critical state is the minimum pressure required to liquefy a gas at the critical temperature. It is also the saturated vapor pressure of a liquid at its critical temperature
The gas and liquid phases of a substance are in equilibrium, with the density of the gas phase equal to that of the liquid phase. The gas-liquid interface disappears; this state is known as the critical state. The pressure at the critical state is called the critical pressure of that substance.