U and in the throttling process the sum of work W=n+w2=p,i-p2V2 then C2-U1=n1-P2V2 72 tpV 2 Throttling process is const -enthalpy process It is isenthalpic 4上一内容下一内容令回主目录 返回 2021/223上一内容 下一内容 回主目录 返回 2021/2/23 U and H in the throttling process the sum of work: W W W pV p V = + = − 1 2 1 1 2 2 then U U pV p V 2 1 1 1 2 2 − = − Throttling process is const.-enthalpy process! H H 2 1 = U p V U pV 2 2 2 1 1 1 + = + It is isenthalpic