Solution Continue (c)mean effective pressure mep = V-v PV = (R/M)T =const. (1bar)(560cm) 8.314k (300K) 28.97kg·K =6.5×10-4kg Weyele =mn[(u3-ua)-(uzu)] =(6.5×10-4kg)[(1678.7-795.8)-(491.2-214.07)]kJ/kg=0.394kJ Weycle mep= Weycle V-V2-V(1-V2/W) Cc)I m 0.394kJ =8.04 bars 上海文通大学 May15,2018 21 SHANGHA BAO TONG LINIERSITYMay 15, 2018 21 Solution Continue (c) mean effective pressure ?