Physical Chemistry Real gases Supercritical fluid A supercritical fluid is one whose T and P satisfy T>T andp>p 2 A supercritical fiquid usually has liquidlike density but its e viscosity is much lower than typical for a liquid and diffusion coefficients in it are much higher than in liquidsSupercritical fluid A supercritical fluid is one whose T and P satisfy A supercritical fiquid usually has liquidlike density but its viscosity is much lower than typical for a liquid and diffusion coefficients in it are much higher than in liquids. T > Tc and P > Pc Physical Chemistry Real Gases