![]() (3) The heat transfer of the irreversible process cannot be simply calculated without additional information, and it cannot be shown in the T-S diagram.Įntropy generation is another important concept in the second law of thermodynamics. en-tr-pik -tr-pik adjective entropically en-tr-pi-k (-)l -tr- adverb Did you know With its Greek prefix en-, meaning 'within', and the trop- root here meaning 'change', entropy basically means 'change within (a closed system)'. Figure 6.5.e2 T-S diagram: the shaded area represents the heat transfer of a reversible process. ![]() At lower temperatures, the enthalpy change has more influence on the Gibbs energy. Therefore, at higher temperatures, the contribution of the entropy change is more important in determining the Gibbs energy. This integral can be shown graphically as the shaded area under the T-S curve of the reversible process, see Figure 6.5.e2. The formula DeltaG DeltaH - TDeltaS shows that part of the energy change of a reaction is proportional to the temperature. ![]()
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