A Steam Generator is a type of heat exchanger in which hot exhaust gases (modeled as air) are used to heat saturated liquid water to produce steam. In this case hot exhaust gases enter a heat exchanger at 700 K and at a mass flow rate of 20 kg/s. Saturated liquid water enters the heat exchanger at 800 kPa and is converted to saturated vapor at a rate of 2 kg/s. Assuming the steam generator to be adiabatic with the surroundings determine: a) the exit temperature of the steam (°C), b) the exit temperature of the air (K), c) the maximum possible steam generation rate (kg/s), d) the efficiency of the generator.