121. A water cooler uses 50 lb/hr of melting ice to cool running water from 80°F to 42°F. Based

on the inside coil area, Ui = 110 Btu/hr-ft2

-°F. Find the gpm of water cooled.

A. 0.10 GPM B. 0.21 GPM

C. 0.38 GPM D. 0.45 GPM