What is the boiling point of Ammonia (NH3) at 0 degrees gas pressure in Fahrenheit?

The boiling point of ammonia (NH3) at atmospheric pressure is approximately -28 degrees Celsius, which translates to around -18 degrees Fahrenheit. However, when considering the question specifically at "0 degrees gas pressure," we're referring to the boiling point under a vacuum or lower pressure, which changes its boiling point.

Among the choices provided, the closest value to the actual boiling point of ammonia in Fahrenheit, adjusted for conditions, is 28.0 degrees. This means that at significantly reduced pressure, ammonia will boil at approximately this temperature. Thus, in specialized conditions where the pressure is decreased, ammonia can exhibit a boiling point that can indeed be observed at higher temperatures than standard boiling, reflecting the cryogenic nature of the substance.

For ammonia specifically, under such conditions, it’s notable that it can show different boiling points depending on pressure, but at atmospheric pressure is typically near -28 degrees Celsius. When evaluating the adjustments provided in the options, 28.0 degrees emerges as the correct value to consider at the stated condition.