Joule's constant

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• Joule's laws — are a pair of laws concerning the heat produced by a current and the energy dependence of an ideal gas to that of pressure, volume, and temperature, respectively. Joule s first law, also known as the Joule effect, is a physical law expressing the …   Wikipedia

• JOULE (J. P.) — Joule compte parmi les plus importants fondateurs de la thermodynamique. Parvenu en 1843 à donner une formulation stricte du principe de la conservation de l’énergie, il entreprit de quantifier les relations entre chaleur et travail au moyen… …   Encyclopédie Universelle

• Joule's law — 1. (Elec.) The law that the rate at which heat is produced in any part of an electric circuit is measured by the product of the square of the current times the resistance of that part of the circuit. If the current (i) is constant for an interval …   The Collaborative International Dictionary of English

• Joule–Thomson effect — In physics, the Joule–Thomson effect or Joule–Kelvin effect describes the temperature change of a gas or liquid when it is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the environment.cite book… …   Wikipedia

• Joule Gay Lussac — Détente de Joule et Gay Lussac La détente de Joule Gay Lussac est une détente dans le vide. Un gaz obéissant aux lois de Joule est enfermé dans un récipient de volume v. Il est ensuite brusquement mis en contact avec un récipient de volume v .… …   Wikipédia en Français

• joule's law — noun Usage: usually capitalized J Etymology: after J. P. Joule : either of two statements in physics: (1) the rate at which heat is produced by a steady current in any part of an electric circuit is jointly proportional to the resistance and the… …   Useful english dictionary

• Joule-second — The joule second is a unit equal to a joule multiplied by a second, used to measure action or angular momentum. The joule second is the unit used for Planck s constant.ActionThe action of a system has the dimensions of energy integrated over… …   Wikipedia

• Joule's law — Physics. 1. the principle that the rate of production of heat by a constant direct current is directly proportional to the resistance of the circuit and to the square of the current. 2. the principle that the internal energy of a given mass of an …   Universalium

• Joule per mole — The joule per mole (symbol: J·mol 1) is an SI derived unit of energy per amount of material. Energy is measured in joules, and the amount of material is measured in moles.Physical quantities measured in J·mol 1 include: * Heat of vaporization *… …   Wikipedia

• Lois de Joule — Loi de Joule (thermodynamique) En thermodynamique, les lois de Joule sont deux lois de comportement d un gaz qui énoncent respectivement que son énergie interne ne dépend que de sa température (première loi de Joule) et que son enthalpie ne… …   Wikipédia en Français

• Loi de Joule (thermodynamique) — En thermodynamique, les lois de Joule sont deux lois de comportement d un gaz qui énoncent respectivement que son énergie interne ne dépend que de sa température (première loi de Joule) et que son enthalpie ne dépend que de sa température… …   Wikipédia en Français