Consider the flow past a 30-degree expansion corner. The upstream conditions are M1 = 2, P1 = 3 atm, and T1 = 400 K. Calculate the following downstream conditions: M2, P2, T2, T02, and P02.

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?