Average Velocity of Gas Molecules S.J.T.U. Phase Transformation and Applications Page 8/66 Monatomic,ideal gas in equilibrium with its pressure and temperature PV =nRT Cv 3 R 2 SJTU Thermodynamics of Materials Spring 2008( X.J.Jin Lecture 19 StatisticalPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 19 Statistical Page 8/66 Average Velocity of Gas Molecules V RC 23 = Monatomic, ideal gas in equilibrium with its pressure and temperature = nRTPV