Wikipedia - Statistical mechanics / Thermodynamic free energy
Field of reference: Physics
Description: A closed physical system is governed by a single law: the second law of thermodynamics, which can be stated as the non-decreasing entropy (i.e. non-decreasing complexity) of the physical system as it progresses from state to state (i.e. evolves with time). Every physical system will fall into its minimum energy state while tend to increase its entropy, two (generally conflicting) inclinations. The ultimate system's equilibrium is a "compromise" between the two, i.e. the equilibrium state of the system minimizes the "free energy" rather than the "energy" of the physical system.
“Since the second law of thermodynamics applies to isolated systems, the first case investigated will correspond to this case. The microcanonical ensemble describes an isolated system. The entropy of such a system can only increase, so that the maximum of its entropy corresponds to an equilibrium state for the system."
| שייך לנושאים: 1-13 - חינוך אינטגרלי, -מקורות מדעיים, הטבע, 2. הטבע כמערכת |
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