The steady-state data listed below are claimed for a power cycle operating between hot and cold reservoirs at 1200 K and 400 K, respectively. For each case, evaluate the net power developed by the cycle, in kW, and the thermal efficiency. Also in each case apply Eq. 5.13 on a time-rate basis to determine whether the cycle operates reversibly, operates irreversibly, or is impossible. (a) Q . H 5 600 kW, Q . C 5 400 kW (b) Q . H 5 600 kW, Q . C 5 0 kW (c) Q . H 5 600 kW, Q . C 5 200 kW