What is the density of vapor at 36 degrees?

To determine the density of vapor at 36 degrees Fahrenheit, it is essential to use the appropriate gas laws and tables that relate temperature, pressure, and density. In this case, the correct option gives a density of 0.0252 ft³/lb, which is consistent with standard calculations for the density of a vapor at that specific temperature.

Density can be calculated using the ideal gas law, which establishes a relationship among pressure, volume, and temperature. At a temperature of 36°F, the properties of the gas (in this case, the vapor) provide a density value near 0.0252 ft³/lb when applied to the characteristics of commonly encountered gases in refrigeration systems, such as ammonia or R-134a.

Using the appropriate tables or empirical data at 36 degrees, the chosen answer aligns well with typical values observed for vapor density under standard atmospheric conditions. Hence, this density value significantly benefits practical applications within industrial refrigeration, where vapor properties are crucial for system design and efficiency.