The value corresponding to a temperature of 374.12°C and pressure of 22,090 kPa is called the what?

The correct term for the value corresponding to a temperature of 374.12°C and pressure of 22,090 kPa is known as the critical point. At the critical point, the properties of the liquid and vapor phases of a substance become indistinguishable. In this condition, no amount of pressure will change the substance from a vapor to a liquid or vice versa, and the substance is at a state known as the supercritical fluid state.

The temperature and pressure provided in the question are specifically at the critical conditions for water, which help define the limits beyond which water cannot exist as liquid and vapor distinctly. Understanding the critical point is essential in power engineering, particularly in processes involving steam generation and thermodynamic cycles.

Recognizing this term is crucial for engineers, as it affects design considerations for boilers, turbines, and other components where phase changes of fluids are involved.