上浒充通大率 SHANGHAI JIAO TONG UNIVERSITY 8.2 Components(1)独立组元/组分数 To specify a system,we need to know Pressure,Temperature,and Composition of each phase We do not specify the amount(like mass,volume,or moles)of each phase C-N-R N:number of chemical species R:the number of independent relationships among N EX1.NaCl+H2O,N=2.R=0.C=2 TONG EX2.N2,H2,NH3;N=3.R=0.C=3 EX3.N2,H2,NH3; N,+3H,=2NH N=3,R=1.C=2 EX4.N2,H2,NH3; N2+3H2=2WH3 Initially N2:H2=1:3;N=3,R=2.C=1 88.2 Components (1) 独立组元/组分数 To specify a system, we need to know Pressure, Temperature, and Composition of each phase N: number of chemical species R: the number of independent relationships among N EX1. NaCl+ H2O, N=2. R=0. C=2 EX2. N2, H2, NH3; N=3, R=0. C=3 EX3. N2, H2, NH3; N=3, R=1. C=2 EX4. N2, H2, NH3; , Initially N2:H2=1:3; N=3, R=2. C=1 We do not specify the amount (like mass, volume, or moles) of each phase 8