The evaporation temperature of R-134a at 0 psig is approximately which Fahrenheit?

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Multiple Choice

The evaporation temperature of R-134a at 0 psig is approximately which Fahrenheit?

At 0 psig the refrigerant is at atmospheric pressure, so the evaporation temperature is the saturation (boiling) temperature at that pressure. For R-134a, the saturated boiling point at roughly 1 atm (14.7 psia) is about -26.1°C, which is about -15°F. So the evaporation temperature at 0 psig is approximately -15°F. The other options are not the saturation temperature at atmospheric pressure for R-134a.

At 0 psig the refrigerant is at atmospheric pressure, so the evaporation temperature is the saturation (boiling) temperature at that pressure. For R-134a, the saturated boiling point at roughly 1 atm (14.7 psia) is about -26.1°C, which is about -15°F. So the evaporation temperature at 0 psig is approximately -15°F. The other options are not the saturation temperature at atmospheric pressure for R-134a.

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