Abstract

Techniques for the simulation of thermodynamic processes in molecular systems are proposed. The results of the calculation of the argon isothermal compressibility by the molecular dynamics method for isobar cooling from 200 to 15 K at a pressure of 40 atm and an adiabatic compressibility in the range of 200–160 K at 40 atm are given. Steps, interpreted as phase transitions, are visible on the temperature dependences of the isothermal compressibility at fast (1012 K/s) and relatively slow (109 K/s) cooling.

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