4. Find the heat required to rise the temperature of 5 Kg of steel from 15 C° to 100 C° where C for steel = 480 J/Kg.K°. Also determine the

final temperature of cast iron of mass 10 Kg and temperature T1 = 200 C° when lost a heat of 715.5 Kj while Ci = 427 J/Kg.K".