4. Orange juice with 12% solids is being heated by direct steam injection using steam at a pressure of 232.1 kPa. The product enters the heating system at 50°C at a rate of 100 kg/min and is being heated to 120°C. The product specific heat is a function of composition as follows: Cp=Cpwater (Wwater) + Cpsolids (Wsolids) Heat capacity of water at 50°C is 4.178 kJ/kg°C, at 120°C 4.232 kJ/kg°C Average heat capacity of solids 2.161 kJ/kg°C Determine the amount of steam and heat supplied by steam.