Ideal Gas Model ldeal gas as a collection of perfectly hard amssald Liquid spheres. Solid Critical all collisions between atoms or point p<<pc molecules are perfectly elastic and in which there are no inter- Triple point; VTT molecular attractive forces. Temperature infinitesimally small,taking up no volume themselves (point masses) Ideal gas equation of state iPU RT pV=mRT p而=RTpV=nRT 上降文通大学 March 21,2018 4 SHANGHAI JIAO TONG UNIVERSITYMarch 21, 2018 4 Ideal Gas Model Ideal gas equation of state c p p T T  c • as a collection of perfectly hard spheres. • all collisions between atoms or molecules are perfectly elastic and in which there are no inter￾molecular attractive forces. • infinitesimally small, taking up no volume themselves (point masses) Ideal gas