A room contains air at 1 atm, 82oF, and 70 percent relative humidity. Using the psychrometric chart,

Question:

A room contains air at 1 atm, 82oF, and 70 percent relative humidity. Using the psychrometric chart, determine
(a) The specific humidity.
(b) The enthalpy (in Btu/lbm dry air).
(c) The wet-bulb temperature.
(d) The dew-point temperature.
(e) The specific volume of the air (in ft3/lbm dry air).