Free Ideal Vac expansion uu的 Ideal gas gas dT=0,reversible For the free expansion of ideal gas W=0,Q=0,△U=0 Isothermal and reversible compression process: work done on system by surroundings,heat liberated to surroundings from system. O in the surroundings 11 PDF文件使用"pdfFactory Pro”试用版本创建耀，fineprint.com,cn
11 Ideal gas Vac uum Ideal gas Free expansion dT=0,reversible Isothermal and reversible compression process： work done on system by surroundings, heat liberated to surroundings from system. For the free expansion of ideal gas ： W=0，Q=0，DU=0 W Q in the surroundings PDF 文件使用 "pdfFactory Pro" 试用版本创建 耀www.fineprint.com.cn
What is common to the following spontaneous processes? A book falling to the floor Heat transfer from a hot to a cold body the free expansion of ideal gas .All are associated with an increase in disorder in the final state. .The system is restored,but W-in the surroundings. -Spontaneous change is an irreversible process. 12 PDF文件使用"pdfFactory Pro”试用版本创建m,fineprint.com,cn
12 What is common to the following spontaneous processes? • A book falling to the floor • Heat transfer from a hot to a cold body • the free expansion of ideal gas •All are associated with an increase in disorder in the final state. •The system is restored, but W Q in the surroundings. •Spontaneous change is an irreversible process. PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn
The Carnot Cycle High T reservoir 888 Adiabat A Isothermal Adiabat reversible 4 1 expansion piston B Isotherm Adiabatic reversible Isotherm 2 expansion Volume,V 13 PDF文件使用"pdfFactory Pro”试用版本创建iww.fineprint.com.cn
13 The Carnot Cycle 1 piston High T reservoir nnnn nnnn n nnn nn nn 2 n n n n n n n n Isothermal reversible expansion Adiabatic reversible expansion PDF 文件使用 "pdfFactory Pro" 试用版本创建 Ìwww.fineprint.com.cn
The Carnot Cycle D. 3 oo. Adiabat Isothermal Adiabat reversible compression B Isotherm Adiabatic Isotherm reversible compression 8888 3 Volume,V 14 PDF文件使用"pdfFactory Pro”试用版本创建翻m,fineprint.com,cn
14 The Carnot Cycle n n n n n n n n n nn nnn nn 3 Isothermal reversible compression nnnn nnnn 4 Adiabatic reversible compression PDF 文件使用 "pdfFactory Pro" 试用版本创建 糿www.fineprint.com.cn
Net Work and Efficiency The Carnot cycle is an example of how net work is done in a cyclic process.Basically,heat is taken from a hot reservoir, work is done and some heat is dumped to a cold reservoir. Hot reservoir 0 w system surroundings Net work 22 Cold reservoir PDF文件使用"pdfFactory Pro”试用版本创建wm,fineprint.com,c四
15 Net Work and Efficiency The Carnot cycle is an example of how net work is done in a cyclic process. Basically, heat is taken from a hot reservoir, work is done and some heat is dumped to a cold reservoir. Hot reservoir T1 system surroundings Q1 w Net work Cold reservoir T2 Q2 PDF 文件使用 "pdfFactory Pro" 试用版本创建 Ìwww.fineprint.com.cn