Amass of air occupying a volume of 0.15m^3 at 3.5 bar and 150 °c is allowed to expand isentropically to 1.05 bar. its enthalpy is then raised by 52kj (note the unit) by heating at constant pressure. assuming that all processes occur reversibly, sketch them on a p-v chart and calculate the total work done and the total heat transfer.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false