四个基本公式ZHEIANGUNIVERSTSCIENNCIZATECHN(I)dU =TdS - pdV(3)dA = -SdT - pdV: dU =8Q + $W:A=U-TS80: dA= dU -TdS - SdT: dsT: dU = TdS - pdV:. dU = TdS - pdv.:.dA = -SdT - pdv(2)dH = TdS + Vdp(4)dG =-SdT + Vdp:H=U+ pV:G=H-TS:. dH = dU + pdV + Vdp: dG = dH -TdS - SdI: dU = TdS- pdv: dH - TdS + Vdp:. dH = TdS +Vdp:. dG = -SdT +Vdp7Zhang Li-qing2019/10/12
从基本公式导出的关系式ZHEIANGUNIVERSTYOSCIENATECHNGdU = TdS- pdV +8WdH = TdS +Vdp + $WdA =-SdT - pdV +SWdG =-SdT + Vdp +$W适用于组成恒定的封闭体系?Zhang Li-qing2019/10/12
AG△A的计算ZHEIANGUNIVERSITYOSCIENCE&TECHNO1.单纯PVT变化a.等温过程b.非等温过程2.相变化过程a.可逆相变b.不可逆相变3.化学变化a.△rGT）的计算b.△G（T随温度变化的计算Gibbs-Helmholtz方程Zhang Li-qing2019/10/12
△G,△A的计算ZHEIANGUNIVERSTYOSCIENCE&TECHNOLOGY1.单纯PVT变化Pi,V,T -→ P2,V2,Ta.等温过程AA=AU -TAS(1)AG -AH-TAS等温>Vdp(2) dG =-SdT +VdpV=m/p.SVasdpP△G = [ Vdp =VPVdp = nRT In P2=nRT InV2PPiFgVrdp(Fg)aJP-b)=R1PV10Zhang Li-qing2019/10/12
△G,△A的计算ZHEIANGUNIVERSTYOSCIENCE&TECHNOLOGY1.单纯PVT变化Pi,V,T → p2,V2,Ta.等温过程等温-pdv(3) dA = -SdT - pdVpdV=0- pdV -M=ADg△G- pdV = nRT lnVVVFgP(Fg)gvVaOV-b)=R1DV111Zhang Li-qing2019/10/12