Polytropic process

In thermodynamics, is a change of state of a system, the equation for the pressure p and volume V is referred to as polytropic. The exponent is called the polytropic exponent. Special cases of polytropic change of state are:

  • N = 0: isobaric
  • N = 1: isothermal
  • N → ∞: isochoric
  • N =: isentropic or adiabatic - reversible

The gas supplied during the state change of the heat is given by:

Here, m is the mass, T1 and T2 initial and final temperature of the process. The Polytropie is characterized by a fixed heat capacity, which results from cp, cv, and n.

Isothermal process Isochoric process Adiabatic process Isenthalpic process Isentropic process
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