Author Question: How is entropy defined in refrigeration? A) Entropy is the ratio of absolute pressure to absolute ... (Read 121 times)

burchfield96 · **on:** Jul 24, 2018

How is entropy defined in refrigeration?

A) Entropy is the ratio of absolute pressure to absolute temperature.
B) Entropy is the ratio of heat content to absolute temperature.
C) Entropy is the amount of heat remaining after subtracting the heat of compression from the enthalpy.
D) Entropy is the total amount of heat in the refrigerant.

Question 2

A system using R-404a has an evaporation temperature of 0F. If the line length is 100 ft and the system needs a capacity of 2 tons, what size line should be used?

A) 1-1/8 in B) 7/8 in C) 5/8 in D) 3/4 in