Liquid oxygen is stored at what temperature?

Liquid oxygen is stored at what temperature?

• A. -183 degrees C
• B. -123 degrees C
• C. -273 degrees C
• D. -193 degrees C

Answer: (A)

Liquid oxygen is stored at its normal boiling point, about minus 183 degrees Celsius at standard atmospheric pressure. Keeping LOX at this temperature ensures it stays liquid in a cryogenic storage dewar, minimizing boil-off. Warmer than this would cause the liquid to vaporize into gas, while much colder temperatures would push it toward solid oxygen, complicating handling. The other temperatures correspond to different substances or extreme conditions, so minus 183°C is the reference temperature for LOX storage.

Liquid oxygen is stored at its normal boiling point, about minus 183 degrees Celsius at standard atmospheric pressure. Keeping LOX at this temperature ensures it stays liquid in a cryogenic storage dewar, minimizing boil-off. Warmer than this would cause the liquid to vaporize into gas, while much colder temperatures would push it toward solid oxygen, complicating handling. The other temperatures correspond to different substances or extreme conditions, so minus 183°C is the reference temperature for LOX storage.