=+3-20 Determine the heat transfer rate for a process where 5000 cfm of air is cooled from 85 F db and 70 F wb to 60 F db and 57 F wb using the program PSYCH.

(a) For 1000 ft elevation and

(b) for 6000 ft elevation.

(c) Compute the percent difference relative to the heat transfer rate at 1000 ft elevation.