p-v-T surface Graph of the function p=f(T,v),for a pure,simple compressible substances. Liquid H20 CH4N2… Critical Solid Liquid point pIbrT-P!oS Critical point Constant- pressure line Solid Liquid- Triple line vapor Vapor Vapor Solid-vapor Solid-vapor Specific volume Temperature Specific volume Temperature for a substance that expands on freezing for a substance that contracts on freezing 上降文通大学 March 12,2019 7 SHANGHAI JLAO TONG UNIVERSITYMarch 12, 2019 7 p-v-T surface Graph of the function p=f(T,v), for a pure, simple compressible substances. for a substance that expands on freezing for a substance that contracts on freezing H2O CH4 , N2…