isometric process

isometric process [¦ī·sə′me·trik ′prä·səs]

(thermodynamics)

A constant-volume, frictionless thermodynamic process in which the system is confined by mechanically rigid boundaries.

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Isometric process

A constant-volume thermodynamic process in which the system is confined by mechanically rigid boundaries. No direct mechanical work can be done on the surroundings by a system with rigid boundaries; therefore the heat transferred into or out of the system equals the change of internal energy stored in the system. This change in the internal energy, in turn, is a function of the specific heat and the temperature change in the system. See Polytropic process