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Many other thermodynamic processes will result in a change in volume. A polytropic process , in particular, causes changes to the system so that the quantity p V n {\displaystyle pV^{n}} is constant (where p {\displaystyle p} is pressure, V {\displaystyle V} is volume, and n {\displaystyle n} is the polytropic index, a constant).
A comprehensive history and etymology of the epigrammatic phrase can also be found from the etymologist Barry Popik. [4]The phrase is often attributed to the British scientist C. P. Snow, who apparently was credited by his students for using it to help learn the laws of thermodynamics in the 1950s.
Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when the temperature is held constant. Therefore, when the volume is halved, the pressure is doubled; and if the volume is doubled, the pressure is halved.
"Exhalation" is a science fiction short story by American writer Ted Chiang about the second law of thermodynamics. It was first published in 2008 in the anthology Eclipse 2: New Science Fiction and Fantasy, edited by Jonathan Strahan. In 2019, the story was included in the collection of short stories Exhalation: Stories. [2]
Mathematically, = =, where / is the slope of the tangent to the coexistence curve at any point, is the molar change in enthalpy (latent heat, the amount of energy absorbed in the transformation), is the temperature, is the molar volume change of the phase transition, and is the molar entropy change of the phase transition. Alternatively, the ...
Researchers have made a breakthrough in applying the first law of thermodynamics to complex systems, rewriting the way we understand complex energetic systems.
In thermodynamics and fluid mechanics, the compressibility (also known as the coefficient of compressibility [1] or, if the temperature is held constant, the isothermal compressibility [2]) is a measure of the instantaneous relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.
Thermodynamic work is one of the principal kinds of process by which a thermodynamic system can interact with and transfer energy to its surroundings. This results in externally measurable macroscopic forces on the system's surroundings, which can cause mechanical work, to lift a weight, for example, [1] or cause changes in electromagnetic, [2] [3] [4] or gravitational [5] variables.