What is the density of liquid at 45 degrees?

The density of a liquid at a particular temperature can vary significantly based on the type of liquid in question. For industrial applications, especially in refrigeration, understanding the density of common refrigerants at specified temperatures is crucial for calculations related to system performance and efficiency.

The correct answer indicates that at 45 degrees Fahrenheit, the density of the specified liquid is 67.03 lbs./ft³. This value is commonly referenced or derived from tables or empirical data pertaining to the liquid in question, likely a refrigerant, which is often used in industrial refrigeration systems.

Knowing the density at this temperature is important for various operational parameters, including calculating the mass flow rate and ensuring proper design and safety factors are incorporated into the refrigeration system's operation. Accurate density readings allow operators to maintain optimal conditions and troubleshoot issues effectively.

The other choices reflect densities that are incorrect for the liquid at 45 degrees, which could lead to miscalculations in system performance or operational inefficiencies. The precise understanding of density makes it possible to achieve the desired outcomes in refrigeration applications.