What is the specific gravity of the liquid at -28°F and 1 atm?

The specific gravity of a liquid is defined as the ratio of the density of that liquid to the density of water at a specified temperature. At a temperature of -28°F and a pressure of 1 atm, the specific gravity of the liquid in question is 0.6189.

This value indicates that the liquid is less dense than water, which has a specific gravity of 1.000. Liquids with a specific gravity less than 1 will float on water. In industrial refrigeration contexts, specific gravity is crucial for determining the behavior of refrigerants and their mixtures under different operating conditions. Therefore, knowing the specific gravity can help in assessing the suitability of a refrigerant for a given application.

For the other specific gravity values provided, 1.0000 corresponds to pure water, while 0.8750 and 0.5000 suggest densities that are greater than and significantly less than water, respectively. However, neither is applicable at -28°F for the liquid in question, making 0.6189 the accurate measurement.