3.1.3 Ty diagram of a pure substance T.CA Critical point P=25 MPa P=22.09 MPa P=15 MPa 374.14 P=8MPa liquid P=1 MPa vapor P=01 MPa P=0.01 MPa Saturated Saturated vapor liquid Liquid/vapor 0.003155 v.m3/kg
Liquid/vapor liquid vapor 3.1.3 TV 3.1.3 TV diagram diagram of a pure substance of a pure substance
3.1.4 P-V-T diagram of pure substance Solid regio Liquid Solid/liqnid region Critical point 口4 布d Vapor Triple phase curve region Solid/vapo手
Solid regionSolid/liquid Liquid region Liquid/vaporVapor region Critical point Triple phase curve Solid/vapor 3.1.4 P-V-T diagram of pure substance diagram of pure substance
PVT diagram V/L V/S B 托化曲绞 G L-G A B 升华曲线 8-G PT diagram PV diagram
PV diagram PT diagram PVT diagram
Thinking(1) Liquefying vapor Liquid P Solid Vapor T2 T Vc T
Liquefying vapor Liquefying vapor p T Liquid Vapor Solid C Thinking(1) Thinking(1) T 1 P 1 P C T 1 P V C V T C C T 2 T 2 T 1 P 1
Thinking(2) Heating when P=constant Liquid Pc P 二二 Solid Vapor T2 T T Vc TI
Heating when P=constant Heating when P=constant p T Liquid Vapor Solid C Thinking(2) Thinking(2) T 1 P 1 P C T 1 P V C V T C C T 2 T 2 T 1 P 1