Chem. Eng. Thermodynamics (TKK-2137)

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Presentation transcript:

Chem. Eng. Thermodynamics (TKK-2137) 14/15 Semester 3 Chem. Eng. Thermodynamics (TKK-2137) Instructor: Rama Oktavian Email: rama.oktavian86@gmail.com Office Hr.: M.13-15, Tu. 13-15, W. 13-15, Th. 13-15, F. 09-11

Combining 1st and 2nd law of thermodynamics Property relation Thermodynamic network Combining 1st and 2nd law of thermodynamics Relates all of state variables

Property relation Thermodynamic network Reversible work: Reversible shaft work:: Reversible heat: Reversible process for closed system (DEk = DEp = 0): For reversible process: Relates primary thermodynamic variables: P, V, T, U, S Derived from reversible process Does not depend on path since in that equation contains only state variables

Property relation Thermodynamic network Open system, reversible, steady state: Gibbs free energy: Helmholtz free energy:

Property relation Fundamental property relation Maxwell eq. U = internal energy H = enthalpy S = entropy G = Gibbs energy A = Helmholtz energy application of the criterion of exactness for a differential expression Maxwell eq.

Property relation The application of Maxwell eq. With the same method: Experimental data (measured variable P, V, T) Thermodynamic properties H, S, G, etc.

Property relation Enthalpy and entropy as function of P and T Recall

Property relation Enthalpy and entropy as function of P and T

Property relation Enthalpy and entropy as function of P and T EoS EoS Ideal gas EoS for ideal gas:

Thank You !