北京化工大学：《物理化学》课程教学资源（双语习题课）The thermodynamics of mixtures

The thermodynamics of mixtures Tutorial Lecture PDF文件使用"pdfFactory Pro'”试用版本创建fm,fineprint.com,cn

1 The thermodynamics of mixtures Tutorial Lecture PDF 文件使用 "pdfFactory Pro" 试用版本创建 ÿwww.fineprint.com.cn f

1.It is found that the boiling point of binary solution of A and B with XA=0.4217 is 96'C .At this temperature the vapour pressures of pure A and B are 110.1kPa and 94.93kPa, respectively.(a)is this solution ideal?(b) What is the initial composition of the vapour above the solution? PDF文件使用"pdfFactory Pro”试用版本创建ffm,fineprint.com,cn

2 1. It is found that the boiling point of binary solution of A and B with xA=0.4217 is 96℃ .At this temperature the vapour pressures of pure A and B are 110.1kPa and 94.93kPa, respectively. (a) is this solution ideal? (b) What is the initial composition of the vapour above the solution? PDF 文件使用 "pdfFactory Pro" 试用版本创建 fwww.fineprint.com.cn f

2.A dilute solution of bromine in carbon tetrachloride behaves as an ideal-dilute solution.The vapour pressure of pure CCl4 is 33.85 Torr at 298K.The Henry's law constant when the concentration of Br,is expressed as a mole fraction is 122.36 Torr. Calculate the vapour pressure of each component the total pressure,and the composition of the vapour phase when the mole fraction of Br>is 0.050,on the assumption that the conditions of the ideal- dilute solution are satisfied at this concentration. PDF文件使用"pdfFactory Pro”试用版本创建fm,fineprint.com.c四

3 2. A dilute solution of bromine in carbon tetrachloride behaves as an ideal-dilute solution. The vapour pressure of pure CCl4 is 33.85 Torr at 298K. The Henry’s law constant when the concentration of Br2 is expressed as a mole fraction is 122.36 Torr. Calculate the vapour pressure of each component , the total pressure, and the composition of the vapour phase when the mole fraction of Br2 is 0.050,on the assumption that the conditions of the ideal￾dilute solution are satisfied at this concentration. PDF 文件使用 "pdfFactory Pro" 试用版本创建 fwww.fineprint.com.cn f

3.Substance A and B are both volatile liquids with PA*=300Torr,P8*=250Torr,and KB=9.00 Torr(concentration expressed in mole fraction).When XA=0.9,bB=2.22molkg- 1,PA=250Torr,and PB=25Torr.Calculate the activities and activity coefficients of A and B.Use the mole fraction,Raoult's law basis for A and the Henry's law basis (both mole fraction and molalities)for B. PDF文件使用"pdfFactory Pro”试用版本创建m,fineprint..com,cn

4 3.Substance A and B are both volatile liquids with PA *=300Torr, PB *=250Torr, and KB=9.00 Torr (concentration expressed in mole fraction). When xA=0.9,bB=2.22molkg- 1 ,PA=250Torr, and PB=25Torr. Calculate the activities and activity coefficients of A and B.Use the mole fraction, Raoult’s law basis for A and the Henry’s law basis (both mole fraction and molalities) for B. PDF 文件使用 "pdfFactory Pro" 试用版本创建 fwww.fineprint.com.cn f