At what pressure does an N2O cylinder typically store gas and liquid in equilibrium?

The pressure at which an N2O (nitrous oxide) cylinder typically stores gas and liquid in equilibrium is commonly in the range of 650-900 psi. This range reflects the conditions necessary for the gas and liquid to exist simultaneously, maintaining a balance between the two phases in the cylinder.

Nitrous oxide is stored as a liquid under pressure, and its behavior can be understood in terms of vapor pressure, which varies with temperature. At the equilibrium point, the pressure inside the cylinder is stable, allowing for both the gas and liquid phases to coexist. If the pressure were lower than this range, the gas would not be efficiently stored, leading to the predominance of one phase over the other. Conversely, higher pressures could lead to safety hazards and unacceptable conditions for safe usage.

Understanding the correct pressure range is vital for ensuring the safe handling and effective use of nitrous oxide in clinical settings, such as dental procedures. Thus, knowing that the typical storage pressure falls within 650-900 psi directly relates to the safety and functionality of nitrous oxide systems in practice.