The boiling point of refrigerant is the same as which temperature or pressure?

• A. Condenser pressure
• B. Compressor suction pressure
• C. Condensing temperature
• D. Evaporator pressure

Answer: (C)

The boiling point of the refrigerant is a saturated temperature—the temperature at which liquid and vapor are in equilibrium for a given pressure. In a refrigeration cycle, that saturated state can be described either as the boiling temperature at the evaporator pressure or, equivalently, as the condensing temperature at the condenser pressure. Since both describe the same saturated condition, the boiling point is best matched with the condensing temperature.

The other options are pressures or refer to a different part of the cycle, so they don’t describe a temperature at which phase change occurs.