1. A reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. (i) If TH = 1600 K and Tc = 400 K, what is the thermal efficiency? (ii) If n = 40% and TH = 727°C, what is Tc, in °C? (Watch "Carnot Engine Example-1" for both) (iii) If TH= 500°C, Tc = 20°C, and Wcycle = 1000 kJ, what are QH and Qc, each in kJ? (Watch "Carnot Engine Example-2 or 3")

Fig: 1