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Q: A vertical cylinder/piston contains R-22 at -20°C, 70% quality, and the volume is 50 L. This cylinder is brought into a 20°C room, and an electric current of 10 A is passed through a resistor inside the cylinder. The voltage drop across the resistor is 12 V. It is claimed that after 30 min the temperature inside the cylinder is 40°C. Is this possible?