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Constant Volume Isochoric Process Review
An isochoric process , also called a constantvolume 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, inelastic container: The thermodynamic process is the addition or removal of heat; the isolation of the contents of the container establishes the closed system; and the inability of the container to deform imposes the constantvolume condition. The isochoric process here should be a quasistatic process.
The solution of Equation given below for a constant volume process is also not difficult. The work done in a constant volume process is the product of the volume and the change in pressure.
In addition to gases, Equation 145 also applies to liquids. The power requirement for pumps that move incompressible liquids (such as water) can be determined from Equation 144. Replacing the volume (V) with the product of the specific volume and the mass yields Equation 145.
Taking the time rate of change of both sides of Equation 146 determines the power requirements of the pump.
