A lecture hall shown in Fig. P12.31 having a volume of 106 ft3 contains air at 80°F, 1 atm, and a humidity ratio of 0.01 lb of water vapor per lb of dry air. Using the appropriate equations, determine
a. the relative humidity.
b. the dew point temperature, in °F.
c. the mass of water vapor contained in the room, in lb.
