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- The Gibbs Function G is a thermodynamic property. If following relationship as Ꮩ . (ap)T = -(T)P p=-S and = V, prove theThe Gibbs free energy change expression is given by the following equation: AG-AS-TAH AG=Ginitial Gfinal AG AH-TAS AG-AS-HAT ΔG=ΔΗ-SΔΤIn a thermodynamic study, a scientist focuses on the propertiesof a solution in an apparatus as illustrated. A solution iscontinuously flowing into the apparatus at the top and out atthe bottom, such that the amount of solution in the apparatusis constant with time. (a) Is the solution in the apparatusa closed system, open system, or isolated system? (b) If the inletand outlet were closed, what type of system would it be?
- 4. (1) Write the mathematics expression of Gibbs rules. (2) Using the Gibbs rule to discuss of the freedom F of one component system. (3) Draw and discuss the P-T phase diagram of water system.(2) The Gibbs function G is (GF) ₁ P == ound ·S (06), = relationship (25) a = -(=++) ₂ thu modynamic property. If =V, prove the followingDescribe how to find the relationshipbetween the state properties (P, V, T ) of agas and its molar mass or density.
- Differentiate between state and nonstate thermodynamic systems using suitable examples.8) The changes in Gibbs energy of a certain constant pressure process is found to fit the expression AG = -73.1 + 42.8 T, G in J and T in K. Use the Gibbs-Helmholtz equation to calculate the value of AH for the process.The atomic heat capacity of solid Mo is given by the equation 0.503 x 105 Cp = 5.69 + 1.88 x 10-3 T – T² Find the change in entropy (in eu) which accompanies the heating of one mole of Mo from o C to its melting point, 2620°C. (Entropy unit, (eu) equal to i cal K-¹). Cp expression gives heat capacity in units of cal/mol.
- 1. Assume the molar Gibbs free energy of a gas is given by the equation: Gm - RT In(÷)+ (a + bT)P = 0, where po is the standard pressure and a and b are gas-dependent constants. Derive an equation of state for this gas. Show the final result in the form of PV=?.Without carrying out an explicit calculation, explain there lative values of the standard molar entropies (at 298 K) of the following substances: (a) Ne(g) (146 J K-1 mol-1) compared with Xe(g) (170 J K-1 mol-1), (b) H2O(g) (189 J K-1 mol-1) compared with D2O(g) (198 J K-1 mol-1), (c) C(diamond) (2.4 J K-1 mol-1) compared with C(g raphite) (5.7 J K-1 mol-1).Give examples of chemical systems that are (a) open, (b) closed, (c) isolated.