Acooling coil with a cross sectional area of 20 ft is employed to cool from 95 f dh75 f wb to s8.0 f dry-bulb temperature with chilled water entering the coil at 42 f. face velocity should not exceed 500 fpm. assume water velocity to be 6 f's and water temperature rise wtr st. determine (o) the volume flow rate (b) the number of rows (c) the number of fins per foot (d) the rate of heat transfer in the coil in tons and (e) the rate of latent heat transfer in the coil in tons