It is equal to the work during a constant- volume isothermal reversible nonflow process .
Free Enthalpy -: Free enthalpy ( or Gibbs function ) is defined as g = h - Ts
Where , u = internal energy h = enthalpy , T = temperature, s = entropy
Gibbs function is of particular importance in processes where chemical changes occur. For reversible isothermal steady flow pro-cesses or for reversible constant- pressure isothermal nonflow processes , change in free energy is equal to net work .
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