What is the initial boiling point of commercial propane at 14.7 psia?

The initial boiling point of commercial propane at standard atmospheric pressure (14.7 psia) is indeed -44 degrees Fahrenheit. This is a critical piece of information in understanding the properties of propane, particularly because it highlights the temperature at which propane transitions from a liquid to a gaseous state under normal atmospheric conditions.

Understanding the boiling point is essential for safe handling and storage of propane gas. Propane remains in a liquid form under pressure, and when the pressure is released, it begins to vaporize. Knowing that propane boils at -44 degrees Fahrenheit means that at temperatures above this level, propane will turn into gas, which is the state that's commonly used for heating, cooking, and various industrial applications.

In contrast, the other temperature options reflect points that are either above the boiling point of propane, or do not correspond to propane's properties under standard conditions. For practical applications involving propane, it’s key to recognize the relevance of safety measures when working near temperatures around its boiling point to avoid hazards related to its gaseous state.