Steam is supplied to a two stage turbine at 40 bar and 350 C. It expands in the first turbine until it is just dry saturated,then it is re-heated to 350 C and expanded through second-stage turbine. The condenser pressure is 0.035 bar. If the expansion processes in the turbines have isentropic efficiencies of 84% and 78% respectively, in the first and second stage, calculate the heat supplied per kilogram of steam.