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It describes how the Gibbs free energy, which was presented originally by Josiah Willard Gibbs, varies with temperature. [1] It was derived by Helmholtz first, and Gibbs derived it only 6 years later. [2] The attribution to Gibbs goes back to Wilhelm Ostwald, who first translated Gibbs' monograph into German and promoted it in Europe. [3] [4]
It is approximately the heat equivalent of burning 100 cubic feet (2.8 m 3) of natural gas (~105.5 MJ). Quad – unit of energy equal to 10 15 (a short-scale quadrillion) BTU. Foot-pound (ft·lbf or ft·lbf) – unit of mechanical work, or energy, although in scientific fields one commonly uses joule (~1.356 J).
In thermodynamics, the Helmholtz free energy (or Helmholtz energy) is a thermodynamic potential that measures the useful work obtainable from a closed thermodynamic system at a constant temperature . The change in the Helmholtz energy during a process is equal to the maximum amount of work that the system can perform in a thermodynamic process ...
8.5×10 3 J Kinetic energy of a regulation baseball thrown at the speed of sound (343 m/s = 767 mph = 1,235 km/h. Air, 20°C). [101] 9×10 3 J: Energy in an alkaline AA battery [102] 10 4 1.7×10 4 J: Energy released by the metabolism of 1 gram of carbohydrates [103] or protein [104] 3.8×10 4 J: Energy released by the metabolism of 1 gram of ...
Energetics is the study of energy, and may refer to: Thermodynamics, branch of physics and chemistry that deals with energy, work and heat; Bioenergetics, field in biochemistry that concerns energy flow through living systems and cells; Energy flow (ecology), study of the energy balance through living things within an ecosystem
The crash sent the taxi careening onto the sidewalk, where the vehicle hit the 51-year-old woman and two men, 44 and 49. The woman was “pinned” against a fence by the vehicle, a police source said
Oak National Academy is an organisation providing an online classroom and resource hub in the UK. It provides teachers with free lessons and resources for pupils aged from 4 to 16, from reception to year 11. [1]
NBC's digital employees also took action this year in an effort to get a contract for their newly formed media union. On the evening of November 21, the group projected scathing messages onto 30 ...
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