What is the psi range for high-pressure liquid oxygen (LOX)?

The correct range for high-pressure liquid oxygen (LOX) is around 300 psi. This pressure is significant for the storage and handling of liquid oxygen in aviation environments, as it ensures the LOX remains in a liquid state while being transported and stored in pressurized tanks. Operating within this psi range is critical because exceeding the pressure limits could lead to equipment failure and pose safety risks, including oxygen leaks or even an explosion due to the highly reactive nature of liquid oxygen.

Pressure ranges for other options either fall below or exceed the standard for high-pressure LOX storage, where maintaining proper pressure is key to ensuring safety and functionality in aircraft systems that utilize liquid oxygen for breathing or propulsion.