Search results
Results from the WOW.Com Content Network
In thermodynamics, an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which the volume of the closed system undergoing such a process remains constant. An isochoric process is exemplified by the heating or the cooling of the contents of a sealed ...
Classical thermodynamics considers three main kinds of thermodynamic processes: (1) changes in ... An isochoric process is one in which the volume is held constant ...
Any thermodynamic processes may be used. However, when idealized cycles are modeled, often processes where one state variable is kept constant, such as: adiabatic (constant heat) isothermal (constant temperature) isobaric (constant pressure) isochoric (constant volume) isentropic (constant entropy) isenthalpic (constant enthalpy) Some example ...
= , where k B is the Boltzmann constant, and Ω denotes the volume of macrostate in the phase space or otherwise called thermodynamic probability. d S = δ Q T {\displaystyle dS={\frac {\delta Q}{T}}} , for reversible processes only
For instance, for very large values of approaching infinity, the process becomes constant-volume. Gases are compressible, thus their volumes (and specific volumes) may be subject to change during thermodynamic processes. Liquids, however, are nearly incompressible, thus their volumes can be often taken as constant.
An isentropic process is an idealized thermodynamic process that is both adiabatic and reversible. [1 ... = specific heat at constant volume. See also. Gas laws;
In 1968, Anderson developed (∂T/∂P) v =(αK)-1 for the thermal gradient, [7] and its reciprocal correlate the thermal pressure and temperature in a constant volume heating process by (∂P/∂T) v =αK. [8] Note, thermal pressure is the pressure change in a constant volume heating process, and expressed by integration of αK.
Typically, each thermodynamic process is distinguished from other processes in energetic character according to what parameters, such as temperature, pressure, or volume, etc., are held fixed; Furthermore, it is useful to group these processes into pairs, in which each variable held constant is one member of a conjugate pair.