=+3-9.

Air with a dry bulb temperature of 75 F and a wet bulb temperature of 65 F is at a barometric pressure of 14.2 psia. Using the program PSYCH. find

(a) the relative humidity of the air,

(b) enthalpy.

(c) dew point,

(d) humidity ratio, and

(e) the mass density of the dry air.