At steady state, a moist air stream (stream 1) is mixed adiabatically with another stream (stream 2). Stream 1 is at 55°F, 1 atm, and 20% relative humidity, with a volumetric flow rate of 650 ft3/min. A single stream exits the mixing chamber at 66°F, 1 atm, and 60% relative humidity, with a volumetric flow rate of 1500 ft3/min. Determine for stream 2
(a) the relative humidity.
(b) the temperature, in _F.
(c) the mass flow rate, in lb/min.