Which refrigerant is typically associated with a pressure of approximately 130 psig at room temperature?

R22 is a refrigerant that is commonly associated with a pressure of approximately 130 psig at room temperature, which is typically around 70-75°F (21-24°C). This relationship between temperature and pressure in R22 is due to its thermodynamic properties, which dictate how it behaves as a refrigerant in various applications, particularly in air conditioning systems.

It has been widely used in residential and commercial cooling systems, and understanding its pressure-temperature relationship is crucial for professionals working with refrigeration and air conditioning equipment.

While R410A, R134A, and R500 are all refrigerants used in similar applications, they have different pressure characteristics at the same temperature. R410A, for instance, operates at a higher pressure than R22, while R134A and R500 have different pressure profiles as well, making R22 the correct choice for the specified pressure at room temperature.