Tag: Thermodynamics
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Gibbs Free Energy
Introduction Gibbs free energy (G) is a thermodynamic potential that measures the maximum reversible work that a system can perform at constant temperature and pressure. It is a useful concept in the field of thermodynamics and is especially relevant in processes such as chemical reactions, phase transitions, and solution formation. Definition Gibbs free energy is…
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Helmholtz Free Energy
Introduction Helmholtz free energy, named after the physicist Hermann von Helmholtz, is an important concept in the field of thermodynamics. It quantifies the reversible work available in a system at constant temperature and volume. Definition of the Helmholtz Free Energy The Helmholtz free energy of a thermodynamic system is defined as where is the internal…
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Unruh Effect
Introduction The Unruh effect is a theoretical prediction in quantum field theory and is one of the results showing the deep connections between quantum physics, thermodynamics, and relativity. Proposed by William G. Unruh in 1976, it suggests that an accelerating observer will be in a thermal state – in other words, they will observe a…
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Pressure
Introduction Pressure is a fundamental concept in physics, engineering, and various scientific disciplines. It is defined as the force applied per unit area. In a more general sense, it can also be considered as the measure of the force that a fluid exerts on its surroundings. Basic Definition The basic definition of pressure is given…
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Thermodynamics
Introduction Thermodynamics is a branch of physics that studies the relationships between heat, work, temperature, and energy. It describes how energy is transferred and transformed from one form to another, and it is governed by four fundamental laws: the zeroth, first, second, and third laws of thermodynamics. Zeroth Law of Thermodynamics The Zeroth Law of…