PT Journal AU FILIPEK, J TI STATUS CHANGE SIMULATION IN IDEAL GAS SO Trends in education PY 2015 BP 62 EP 70 VL 8 IS 1 DE reversible changes in gas; state function; thermodynamic plane; Adobe flash; interactive animation . AB In closed thermodynamic setup three magnitudes change with heating, cooling and external force effects - volume, pressure and temperature. Therefore it is suitable to visualize state changes in spatial diagram (on thermodynamic plane). Multimedia project, which is a base of this article, graphically describes the course of state and energy magnitudes in ideal gas. ER