A new refrigerant R-125 is stored as a liquid at -20°C with a small amount of vapor. For a total of 1.5 kg R-125, find the pressure and volume.
A) 1 bar, 1.2 L
B) 2 bar, 1.5 L
C) 3 bar, 1.8 L
D) 4 bar, 2.0 L