化工热力学(第三版)陈钟秀课后习题答案(3)
发布时间：2021-06-05
此文档为教材配套的课后习题答案
B11
RTc108.314 132.91 6
B B 0.02989 0.049 0.1336 7.378 10 111 6
Pc13.496 10
B2 0.083
0.4220.422
0.083 0.3417 1.61.6
Tr2 304.2 0.1720.172
0.139 0.03588 4.2
Tr4.2 304.2 2
1
B2 0.139
B22
又Tcij
RTc208.314 304.21
B2 2B2 0.3417 0.225 0.03588 119.93 10 6 6 Pc27.376 10 TciTcj
0.5
132.9 304.2
3
0.5
201.068K
3
Vc1 Vc2 93.13 94.01
Vcij 93.55cm3/mol 22 Zc1 Zc20.295 0.274
0.2845
22 20.295 0.225 cij 1 0.137
22Zcij
Pcij ZcijRTcij/Vcij 0.2845 8.314 201.068/ 93.55 10 6 5.0838MPa
∴
Trij TTcij 201.068 1.507 Prij Pci 38j0.1035.08
0.4220.422
0.083 0.136 1.61.6
Tr121.5070.1720.172
0.139 0.1083 4.2
Tr4.21.50712
01990.
B12 0.083
1B12 0.139
∴B12
RTc1208.314 201.0681 6
B12 12B12 0.136 0.137 0.1083 39.84 10 6
Pc125.0838 10
22
Bm y1B11 2y1y2B12 y2B22
0.242 7.378 10 6 2 0.24 0.76 39.84 10 6 0.762 119.93 10 6 84.27 10 6cm3/mol∴Zm
1
BmPPV
RTRT
→V=0.02486m3/mol
∴V总=n V=100×103×81.38%/12×0.02486=168.58m3 (2)
P1 y1P
Zc10.295 0.24 0.1013 0.025MPa Zm0.2845
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