充气终温的计算 关键看与h的零点是否相同ht=15℃ h=u+ pv=u+rt 理想气体 m=0 pV=mrt pv=RT ℃=0h=R(27315+0)≠0 K u=o h=0充气终温的计算 关键看u与h的零点是否相同 m0=0 h u h ' = t =15℃ h u pv = + ℃ K 理想气体 = +u RT u = 0 h R = +  (273.15 0) 0 u = 0 h = 0 pV mRT = pv RT =