Air as an ideal gas with k51.4 enters a converging–diverging duct with a mach number of 2. at the inlet, the pressure is 26 lbf/in.2 and the temperature is 4458r. a normal shock stands at a location in the converging section of the duct, with mx5 1.5. at the exit of the duct, the pressure is 150 lbf/in.2 the flow is isentropic everywhere except in the immediate vicinity of the shock. determine temperature, in 8r, and the mach number at the exit

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]