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Work and heat are not thermodynamic properties, but rather process quantities: flows of energy across a system boundary. Systems do not contain work, but can perform work, and likewise, in formal thermodynamics, systems do not contain heat, but can transfer heat.
Thermal conduction rate, thermal current, thermal/heat flux, thermal power transfer P = / W ML 2 T −3: Thermal intensity I = / W⋅m −2: MT −3: Thermal/heat flux density (vector analogue of thermal intensity above) q
Secondly, the word dynamics ("science of force [or power]") [22] can be traced back to the root δύναμις dynamis, meaning "power". [23] [24] In 1849, the adjective thermo-dynamic is used by William Thomson. [25] [26] In 1854, the noun thermo-dynamics is used by Thomson and William Rankine to represent the science of generalized heat ...
An Introduction to Thermal Physics. United States of America: Addison Wesley Longman. ISBN 0-201-38027-7. [36] [37] [38] Blundell, Stephen; Blundell, Katherine (2006). Concepts in Thermal Physics. United Kingdom: Oxford University Press. ISBN 978-0-19-856769-1. [39] Gould, Harvey and Tobochnik, Jan (2010). Statistical and Thermal Physics ...
These concepts of temperature and of thermal equilibrium are fundamental to thermodynamics and were clearly stated in the nineteenth century. The name 'zeroth law' was invented by Ralph H. Fowler in the 1930s, long after the first, second, and third laws were widely recognized.
The first and second law of thermodynamics are the most fundamental equations of thermodynamics. They may be combined into what is known as fundamental thermodynamic relation which describes all of the changes of thermodynamic state functions of a system of uniform temperature and pressure.
Thermodynamic integration is a method used to compare the difference in free energy between two given states (e.g., A and B) whose potential energies and have different dependences on the spatial coordinates.
A thermodynamic cycle consists of linked sequences of thermodynamic processes that involve transfer of heat and work into and out of the system, while varying pressure, temperature, and other state variables within the system, and that eventually returns the system to its initial state. [1]
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