Find the normal depth for a discharge of 125 cfs in a trapezoidal channel with a bottom width of 3.00 ft and side slopes of 2 horizontal to 1 vertical. The channel is lined with riprap stones (n

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?