• The Loschmidt constant or Loschmidt's number (symbol: n0) is the number of particles (atoms or molecules) of an ideal gas per volume (the number density)...
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  • Thumbnail for Johann Josef Loschmidt
    Johann Josef Loschmidt (15 March 1821 – 8 July 1895), better known as Josef Loschmidt, was an Austrian scientist who performed ground-breaking work in...
    9 KB (1,018 words) - 11:35, 14 February 2025
  • Thumbnail for Avogadro constant
    particles in an ideal gas, is now called the Loschmidt constant in his honor, and is related to the Avogadro constant, NA, by n 0 = p 0 N A R T 0 , {\displaystyle...
    23 KB (2,740 words) - 23:37, 17 June 2025
  • Landau–Ramanujan constant – Edmund Landau and Srinivasa Ramanujan Legendre's constant (one, 1) – Adrien-Marie Legendre Loschmidt constant – Johann Josef Loschmidt Ludolphsche...
    5 KB (500 words) - 23:13, 7 October 2024
  • for temperature and pressure (STP), then k′ = 1/n0, where n0 is the Loschmidt constant. Avogadro's hypothesis (as it was known originally) was formulated...
    10 KB (1,395 words) - 16:26, 7 June 2025
  • ground state. Let n {\displaystyle n} = 2.69×1025 m−3, which is the Loschmidt constant (nL for NA), or particle density of Earth's atmosphere at standard...
    16 KB (2,427 words) - 06:07, 26 May 2025
  • Thumbnail for Amount of substance
    Loschmidt makes the first estimate of the size of gas molecules and hence of number of molecules in a given volume of gas, now known as the Loschmidt...
    30 KB (3,723 words) - 11:57, 5 June 2025
  • Thumbnail for Amedeo Avogadro
    Josef Loschmidt first calculated the value of the Avogadro constant, the number of particles in one mole, sometimes referred to as the Loschmidt number...
    13 KB (1,475 words) - 18:25, 15 May 2025
  • Thumbnail for Mean free path
    a t m / ( k B T s t d ) {\textstyle n_{0}=p_{atm}/(k_{B}T_{std})} Loschmidt constant Jennings, S (1988). "The mean free path in air". Journal of Aerosol...
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  • value of the atomic mass unit was first obtained indirectly by Josef Loschmidt in 1865, by estimating the number of particles in a given volume of gas...
    39 KB (4,161 words) - 12:38, 19 June 2025
  • Some of the constants used in science are named after great scientists. By this convention, their names are immortalised. Below is the list of the scientists...
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  • Elementary charge (category Physical constants)
    and (through the Faraday constant) at order-of-magnitude accuracy by Johann Loschmidt's measurement of the Avogadro constant in 1865. In some natural...
    22 KB (2,582 words) - 13:26, 3 June 2025
  • a medium with the density of an ideal gas at 1 atm and 0 °C, the Loschmidt constant n 0 = 2.6867811 ⋅ 10 25   m − 3 {\displaystyle n_{0}=2.6867811\cdot...
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  • conditions. Soon after Boltzmann published his H theorem, Johann Josef Loschmidt objected that it should not be possible to deduce an irreversible process...
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  • Thumbnail for Isochoric process
    In thermodynamics, an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process...
    4 KB (527 words) - 16:48, 28 April 2025
  • and the Avogadro–Loschmidt number, the number of molecules in one mole of substance. The constant h is now known as the Planck constant. After his theory...
    10 KB (980 words) - 10:48, 7 May 2025
  • Thumbnail for Ideal gas law
    Ideal gas law (category Pages using Template:Physical constants with rounding)
    gas constant, equal to the product of the Boltzmann constant and the Avogadro constant, k B {\displaystyle k_{\text{B}}} is the Boltzmann constant, N A...
    34 KB (4,622 words) - 17:20, 31 May 2025
  • Thumbnail for Heat capacity ratio
    coefficient, is the ratio of the heat capacity at constant pressure (CP) to heat capacity at constant volume (CV). It is sometimes also known as the isentropic...
    18 KB (2,324 words) - 16:04, 11 August 2024
  • physics Timeline of atomic and subatomic physics Timeline of chemistry Loschmidt, J. (1865), "Zur Grösse der Luftmoleküle", Sitzungsberichte der Kaiserlichen...
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  • Thumbnail for Entropy
    logarithmic law, with a proportionality constant, the Boltzmann constant, which has become one of the defining universal constants for the modern International System...
    111 KB (14,228 words) - 21:07, 24 May 2025
  • dye industry. Johann Josef Loschmidt indirectly determines the number of molecules in a mole, later named the Avogadro constant. William Stanley Jevons publishes...
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  • Thumbnail for Ludwig Boltzmann
    Boltzmann's apparent success emanated, so his long dispute with Loschmidt and others over Loschmidt's paradox ultimately ended in his failure. Finally, in the...
    48 KB (5,326 words) - 14:31, 8 June 2025
  • Thumbnail for Heat capacity
    from 15 °C to 16 °C, or from 34 °C to 35 °C, with negligible error. At constant pressure, heat supplied to the system contributes to both the work done...
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  • Thumbnail for Josef Stefan
    mathematics are named after Joseph Stefan: Stefan–Boltzmann law Stefan–Boltzmann constant σ Stefan adhesion Stefan problem Stefan's equation Stefan's formula Stefan...
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  • Laboratory Los Alamos Neutron Science Center Los Alamos Primer Loschmidt's paradox Loschmidt constant Loss–DiVincenzo quantum computer Lossy medium Lothar Wolfgang...
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  • Thumbnail for Adiabatic process
    γ = constant , T V γ − 1 = constant {\displaystyle {\begin{aligned}P^{1-\gamma }T^{\gamma }&={\text{constant}},\\TV^{\gamma -1}&={\text{constant}}\end{aligned}}}...
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  • Thumbnail for Specific heat capacity
    heat capacity at constant pressure) than when it is heated in a closed vessel that prevents expansion (specific heat capacity at constant volume). These...
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  • Thumbnail for Laws of thermodynamics
    even with internal changes, the sum of all forms of energy must remain constant, as energy cannot be created or destroyed. The second law of thermodynamics...
    20 KB (2,893 words) - 00:42, 19 June 2025
  • Thumbnail for Latent heat
    energy released or absorbed, by a body or a thermodynamic system, during a constant-temperature process—usually a first-order phase transition, like melting...
    21 KB (2,500 words) - 17:13, 17 June 2025
  • Thumbnail for Internal energy
    {\displaystyle c_{V}} is the isochoric (at constant volume) molar heat capacity of the gas; c V {\displaystyle c_{V}} is constant for an ideal gas. The internal energy...
    33 KB (5,041 words) - 14:21, 26 May 2025