Q$.,$ Find the tempt. to which milt will be cooled by direct expension ourface cooler with a constant refrigeration tempt. of $2C,$ if the milk rater is $1$ gallon per minute $(3\mathrm{.}785$ litie$/$min$,$ under the following candition, Here, Onlet tempt. $8$ milk $=27C.$

Cooler area $=1m^2,k=600\frac{}{m^2}K,C_p=8\mathrm{.}3k\frac{J}{k}gK,1$ gallon milt $=930k\frac{g}{m^3}$

Then, $T_2-T_c=$exp$(-\frac{A}{GV})!$