1. Moist air at 100 F, 20 psia, and 40% relative humidity is flowing in a pipe. Determine (a) the dew-point temperature, (b) the humidity ratio, and (c) the adiabatic-saturation temperature.

2. The temperature and adiabatic-saturation temperature for a room of moist air are measured to be 35°C and 20°C, respectively.

A. Determine the humidity ratio and relative humidity if the pressure is 1 atm.

B. Determine the humidity ratio if the pressure is 0.95 atm with the same temperature and adiabatic-saturation temperature as in Part A.