A hobby-farmer harvests fresh apples and pears. He crushes them to make a blended juice for his own consumption and sometimes adds a bit of sugar if the mixture is too tart. The final juice blend contains 12.3% solids (i.e., dissolved sugars). Being a bit of an inventive type, he pumps the juice through a plastic tube immersed in an ice bath. In this manner, he can chill a certain volume of juice per hour (see table below) from its initial temperature of 83F to 39F. The specific gravity of the juice is 1.05 (i.e., each litre of the blended juice weighs 1.05 kg). What is the rate of heat removal (expressed in kJ per hour)? What quantity of heat is removed during a specified processing run?