• Thumbnail for Entropy production
    Entropy production (or generation) is the amount of entropy which is produced during heat process to evaluate the efficiency of the process. Entropy is...
    24 KB (4,239 words) - 05:40, 18 April 2024
  • Thumbnail for Entropy
    Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty. The term and the concept are used...
    108 KB (13,924 words) - 12:52, 4 May 2024
  • Thumbnail for Non-equilibrium thermodynamics
    the evolution of the system in time. Together with the concept of entropy production, this provides a powerful tool in process optimisation, and provides...
    50 KB (6,331 words) - 04:37, 17 March 2024
  • The mathematical expressions for thermodynamic entropy in the statistical thermodynamics formulation established by Ludwig Boltzmann and J. Willard Gibbs...
    29 KB (3,687 words) - 15:41, 26 April 2024
  • Thumbnail for Second law of thermodynamics
    terms of entropy change. A heat pump can reverse this heat flow, but the reversal process and the original process, both cause entropy production, thereby...
    106 KB (15,498 words) - 08:30, 29 February 2024
  • Thumbnail for Onsager reciprocal relations
    temperature times mass density). The rate of entropy production for the above simple example uses only two entropic forces, and a 2×2 Onsager phenomenological...
    17 KB (2,559 words) - 18:02, 27 October 2023
  • Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the...
    63 KB (8,459 words) - 08:46, 23 April 2024
  • Energy dissipation and entropy production extremal principles are ideas developed within non-equilibrium thermodynamics that attempt to predict the likely...
    49 KB (6,097 words) - 22:06, 27 April 2024
  • Rényi entropy is a quantity that generalizes various notions of entropy, including Hartley entropy, Shannon entropy, collision entropy, and min-entropy. The...
    21 KB (3,447 words) - 01:41, 3 May 2024
  • formulation of Prigogine's theorem is: In a stationary state, the production of entropy inside a thermodynamic system with constant external parameters...
    3 KB (352 words) - 06:14, 21 July 2023
  • Thumbnail for Joule expansion
    thermodynamic quantities, including the resulting increase in entropy of the universe (entropy production) that results from this inherently irreversible process...
    16 KB (2,650 words) - 17:25, 24 February 2024
  • is a nonlinear partial differential equation describing specific entropy production in a Newtonian fluid subject to thermal conduction and viscous forces:...
    11 KB (1,893 words) - 14:20, 9 May 2023
  • In physics, maximum entropy thermodynamics (colloquially, MaxEnt thermodynamics) views equilibrium thermodynamics and statistical mechanics as inference...
    27 KB (3,610 words) - 20:17, 31 August 2023
  • In classical thermodynamics, entropy (from Greek τρoπή (tropḗ) 'transformation') is a property of a thermodynamic system that expresses the direction...
    17 KB (2,587 words) - 17:09, 10 March 2024
  • Thumbnail for Entropy (order and disorder)
    signal. Entropy Entropy production Entropy rate History of entropy Entropy of mixing Entropy (information theory) Entropy (computing) Entropy (energy dispersal)...
    24 KB (3,054 words) - 17:12, 10 March 2024
  • in the energy density of a system. Entropy production. Development of entropy in a thermodynamic system. Entropy (statistical thermodynamics), the statistical...
    6 KB (827 words) - 21:28, 15 April 2024
  • theorem). Where entropy production may be calculated as the net increase in entropy of the system together with its surroundings. Entropy production is due to...
    81 KB (11,002 words) - 08:21, 23 March 2024
  • Thumbnail for Energy
    principle of maximum entropy production. It states that nonequilibrium systems behave in such a way as to maximize their entropy production. Energy portal Physics...
    59 KB (7,459 words) - 00:37, 6 May 2024
  • energy, and will therefore be unable to sustain processes that increase entropy. Heat death does not imply any particular absolute temperature; it only...
    29 KB (3,347 words) - 22:12, 24 April 2024
  • associated increase in entropy. Processes with defined local temperature produce entropy at a certain rate. The entropy production rate times local temperature...
    7 KB (868 words) - 02:57, 10 October 2023
  • In physics, the Tsallis entropy is a generalization of the standard Boltzmann–Gibbs entropy. It is proportional to the expectation of the q-logarithm...
    22 KB (2,563 words) - 17:47, 6 March 2024
  • to the probability distribution of the time-averaged irreversible entropy production, denoted Σ ¯ t {\displaystyle {\overline {\Sigma }}_{t}} . The theorem...
    23 KB (3,134 words) - 00:32, 12 March 2024
  • Thumbnail for Quantum thermodynamics
    entropy production is non-negative. When the cold bath approaches the absolute zero temperature, it is necessary to eliminate the entropy production divergence...
    32 KB (4,491 words) - 23:43, 1 May 2024
  • Entropy is one of the few quantities in the physical sciences that require a particular direction for time, sometimes called an arrow of time. As one...
    33 KB (5,020 words) - 14:21, 13 December 2023
  • Thumbnail for Temperature
    cycle are thus imagined to run reversibly with no entropy production. Then the quantity of entropy taken in from the hot reservoir when the working body...
    104 KB (12,973 words) - 06:25, 8 May 2024
  • among its outgoing edges, locally maximizing entropy rate, MERW maximizes it globally (average entropy production) by assuming uniform probability distribution...
    18 KB (2,771 words) - 23:25, 28 November 2023
  • are the Onsager reciprocal relations and the principle of minimum entropy production. After efforts to extend such results to systems far from equilibrium...
    17 KB (2,043 words) - 09:47, 6 December 2023
  • Thumbnail for Laws of thermodynamics
    define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium....
    20 KB (2,858 words) - 16:40, 1 April 2024
  • is the maximum entropy production principle. It states that a non-equilibrium system evolves such as to maximize its entropy production. Chemistry portal...
    55 KB (7,632 words) - 14:55, 16 February 2024
  • that the universe has not achieved thermodynamic equilibrium, as entropy production and free work are still possible, and there are temperature differences...
    7 KB (820 words) - 19:01, 11 March 2024