Work in adiabatic process (1)work in pg. a. r. process 12 K y (P=K) K ecause P,v=p,V=K the erefore W=P22-P nR(T-T) 4上一内容下一内容令回主目录 返回 2021/2/22上一内容 下一内容 回主目录 返回 2021/2/22 Work in adiabatic process （1）work in pg. a. r. process. 2 1 = d V V K V V  −  1 1 2 1 = 1 1 ( ) (1 ) K V V    − − − − − therefore 2 2 1 1 = 1 p V pV W  − − p V p V K 1 1 2 2   because = = 2 1 d V V W p V = − ( ) pV K  = 2 1 ( ) 1 nR T T  − = −