A barometer reads 106 kPa and at the same location a vaccum

A barometer reads 106 kPa and at the same location a vaccum gauge reads 16 kPa differential between a rigid container (L+V) and the surroundings. Determine the temperature of the contents assuming Refrigerant 22 (NIST) as the fluid.

Solution

Find the absolute pressure.

Pabs=106+16=122 kPa

Obtain the saturation temperature at 122 kPa for REfrigerant 22.

T=-37 deg centigrade