What is the boiling point of NH3?

The boiling point of ammonia (NH3) is approximately -28 degrees Fahrenheit when measured under standard atmospheric pressure. This is a crucial fact in understanding the properties of ammonia, especially in high-pressure piping applications, where the handling and storage of gases is critical.

Ammonia, being a gas at room temperature, transitions to a liquid at low temperatures, which is why its boiling point is significantly below freezing. When related to practical applications, this low boiling point indicates that ammonia must be stored under high pressure or at low temperatures to remain in a liquid state. Properly understanding these properties is important in fields such as industrial refrigeration, where ammonia is commonly used as a refrigerant.

The other options represent temperatures that do not accurately reflect the boiling point of ammonia. For example, 0 degrees F and 32 degrees F are closer to the freezing point of water rather than ammonia, while 100 degrees F is considerably above the boiling point of ammonia. Understanding these distinctions is vital in both theoretical and practical applications in chemistry and engineering.