Humid air at 30 Celcius, 1 atm, and 90% relative humidity enters a condenser at 5 Celsius where part of water condenses. The remaining air leaves the condenser at 1atm and at a rate of 500 m^3/min.
(a) Find the rate at which water condenses (kg/min)
(b) Write and simplify the energy balance equation of this process.