Isenthalpic process

In thermodynamics, a state change is referred to as isenthalpically at which the enthalpy does not vary:

With

  • : Main part of the technical work.

An example of a process is the isenthalpic expansion of a gas through a throttle valve, see Joule-Thomson effect.

Applies the equation of state of an ideal gas

For ideal gases the isenthalphen processes are therefore just the isotherms.

An isothermal reversible process is always isenthalpically, but the converse is not true.

The lines of constant enthalpy are in the state diagram are called isenthalps (or throttle curves).

Adiabatically | diabatically isenthalpically · · polytropically: isobaric | isochoric | isothermally | isentropic

  • Thermodynamic process
Contour line#Temperature and related subjects Polytropic process Isentropic process
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