The data listed below are claimed for a power cycle operating between reservoirs at 727°C and 127°C. For each case, determine if any principles of thermodynamics would be violated.
(a) QH = 600 kJ, Wcycle = 200 kJ, QC = 400 kJ.
(b) QH = 400 kJ, Wcycle = 240 kJ, QC = 160 kJ.
(c) QH = 400 kJ, Wcycle = 210 kJ, QC = 180 kJ.