3.24 Two thousand cfm (1.0 m 3 /s) of air at an initial state of 60 F (16 C) db and relative humidity of 30 percent is to be heated and humidified to a final state of 110 F (43 C) db and 30 percent relative humidity. Assume sea – level pressure throughout. The air will first be heated followed by adiabatic humidification usi ng saturated vapor at 5 psia (34.5 kPa). Using the psychrometric chart, find the heat transfer rate for the heating coil and the mass flow