1. Chem. Eng. Thermodynamics (TKK-2137)
14/15 Semester 3
Chem. Eng. Thermodynamics (TKK-2137)
Instructor: Rama Oktavian
Office Hr.: M.13-15, Tu , W , Th , F

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

3. 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

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

5. 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.

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

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

8. Property relation
Enthalpy and entropy as function of P and T

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

10. Thank You !