What is the specific gravity of propane?

The specific gravity of propane is approximately 0.57, which is commonly rounded to 0.6 or referenced as 0.67 in some contexts. Specific gravity is a dimensionless number used to compare the density of a substance to the density of water, where water is assigned a specific gravity of 1. Since propane has a specific gravity less than 1, it indicates that propane is lighter than water, which is a crucial property when considering its behavior in various applications, especially in gas storage, transport, and combustion.

Given your answer as 1, it does not accurately reflect propane's specific gravity values and may lead to misunderstanding its physical characteristics in comparison to other substances. Understanding that propane is indeed less dense than water can help in practical applications, such as ensuring safe storage and handling, as well as assisting in the design of systems that utilize propane for heating or cooking.