A piston-cylinder assembly contains 2 Ib of water, initially at 100 Ibf/in? and 400°F. The water undergoes two processes in series: a constant pressure process followed by a constant volume process. At the of the constant volume process, the temperature is 300°F and the water is a two phase liquid-vapor mixture with a quality of 60%. Neglect kinetic and potential energy effects. Determine the total heat transferred in this process (answer in BTU).