How much can the pressure of trapped liquid increase per degree Fahrenheit of temperature increase?

The relationship between pressure and temperature changes for a trapped liquid in a closed system can be significant. As temperature increases, the kinetic energy of the liquid molecules also increases, which in turn raises the pressure within the system.

For many common refrigerants, the pressure can increase approximately 100 to 150 psi for each degree Fahrenheit increase in temperature. This is consistent with the principle that liquids generally exhibit considerable increases in pressure when heated, especially when they are confined. Understanding this concept is crucial for safely operating refrigeration systems, as excessive pressure can lead to system failures or leaks.

The specified range indicates a practical understanding of how various refrigerants behave under temperature fluctuations, allowing operators to anticipate and manage the pressures within their systems effectively.