Αποτελέσματα Αναζήτησης
14 Ιουν 2021 · From our definitions of reversible and irreversible pressure–volume work, we have \({dw}^{rev}<{dw}^{irrev}\) and\(\ w^{rev}<w^{irrev}\), so long as the initial and final states are the same in the irreversible process as they are in the reversible constant-temperature process.
- 4.2: Reversible and Irreversible Processes - Physics LibreTexts
Define reversible and irreversible processes. State the...
- 3.9: Irreversible Work and Internal Friction
Consider an irreversible adiabatic process of a closed...
- 4.2: Reversible and Irreversible Processes - Physics LibreTexts
Define reversible and irreversible processes. State the second law of thermodynamics via an irreversible process. Consider an ideal gas that is held in half of a thermally insulated container by a wall in the middle of the container. The other half of the container is under vacuum with no molecules inside.
An irreversible process increases the total entropy of the system and its surroundings. The second law of thermodynamics can be used to determine whether a hypothetical process is reversible or not. Intuitively, a process is reversible if there is no dissipation.
An irreversible process is one in which the system and its environment cannot return together to exactly the states that they were in. The irreversibility of any natural process results from the second law of thermodynamics.
13 Απρ 2022 · Consider an irreversible adiabatic process of a closed system in which a work coordinate \(X\) changes at a finite rate along the path, starting and ending with equilibrium states. For a given initial state and a given change \(\Del X\), the work is found to be less positive or more negative the more slowly is the rate of change of \(X\).
For reversible processes (the most efficient processes possible), the net change in entropy in the universe (system + surroundings) is zero. Phenomena that introduce irreversibility and inefficiency are: friction, heat transfer across finite temperature differences, free expansion, ...
An irreversible process is a thermodynamic process that departs from equilibrium. In terms of pressure and volume, it occurs when the pressure (or the volume) of a system changes dramatically and instantaneously that the volume (or the pressure) do not have the time to reach equilibrium.
