Calculation of Vapour Pressure of Metals by Statistical-Mechanical Method With the Debye Model

Statistical expression of vapour pressure equations of metals is derived from the Debye model.The statistical distribution of T_-p ensemble is presented in an in-elab-orate mode and the partition function is defined.The vapour pressure of eleven metals have been calculated with the Debye equation and compared with those given by the E-instein equation and empirical equation.Comparison of results of calculation from dif-ferent methods show their evident accordance within the same orders of magnitude.