1 Kg of water (CP = 0.5 J/KgoC) is pumped to a height of 1 m, work done by the motor is 20 J/Kg, and heat liberated by it is 5 J/Kg, what is the final temperature of water if the initial temperature was 20oC?

Topics in this quiz include: Energy balance simplifications and solving, open and closed energy balance applications, enthalpy of formation and reaction, heat of combustion and the concepts of heat merging.