Definition
An isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process, in which the volume of the closed system is kept or held constant.
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| Fig: Isochoric Process |
For an isochoric process, dV=0. In this
process, the work done by the system is zero, i.e., W=0
Therefore from first law of thermodynamics, ΔQ = ΔU
as the net work done Wisochoric = 0. Thus in an isochoric process, the total heat energy absorbed by the system
is used to change its internal energy.
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