=+3-25.

Air at 40 F (5 C) db and 35 F (2 C) wb is mixed with warm air at 100 F (38 ℃) db and 77 F

(25 C) wb in the ratio of 2000 cfm cool air to 1000 cfm warm air. Find the resulting humidity ratio and enthalpy using psychrometric Chart la on the basis of volume flow rates.