Above which temperature does pressurized nitrous oxide convert to a gas?

Pressurized nitrous oxide transitions from a liquid to a gas at approximately 36°C (97°F). This temperature is critical because nitrous oxide, when stored under pressure, can exist in a liquid state. However, once the temperature exceeds this threshold, the pressure decreases, and it begins to vaporize into a gas. Understanding this property is vital for safety and operational procedures when working with nitrous oxide in rocketry.

The other options suggest lower temperatures where gas conversion would not occur. At those temperatures, nitrous oxide remains predominantly in a liquid state if kept under sufficient pressure. As a result, knowing that 36°C is the temperature at which this phase change occurs helps ensure safe handling and effective use in applications such as rocket propulsion.