Superheated steam at T1 (°C) and 10.0 bar is combined with saturated steam at T2 (°C) and 7.0 bar in a ratio (1.96 kg of steam at 10 bar) / (1.0 kg of steam at 7 bar). The product stream is at 250°C and 70bar. The process operates a steady state.

(a) Calculate T1 and T2, assuming that the blender operates adiabatically.

(b) If in fact heat is being lost from the blender to the surroundings, is your estimate of T1 too high or too low? Briefly explain.