Q3: An equimolar liquid mixture of ethanol and water is in equilibrium with its vapor at 50° C. Calculate: (1) The system pressure (2) The composition of the vapor. (3) The average molecular mass of the liquid phase. Antoine constants |Component A Water Ethanol 3816.44- 46.13 3703.98- 41.01 18.30 16.91

Q3: An equimolar liquid mixture of ethanol and water is in equilibrium with its vapor at 50° C. Calculate: (1) The system pressure (2) The composition of the vapor. (3) The average molecular mass of the liquid phase. Antoine constants |Component A Water Ethanol 3816.44- 46.13 3703.98- 41.01 18.30 16.91

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter4: Gibbs Energy And Chemical Potential

Section: Chapter Questions

Problem 4.1E: List the sets of conditions that allow dS, dU, and dH of a process in a system act as a spontaneity...

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Consider the synthesis of sulphur trioxide from its elements at 25oC:1/4 S8 (s) + 3O2(g) → 2SO3 (g) Thermodynamic Data: Species ∆fHo(kJ/mol)(at 298.15 K) So (J/K.mol)(at 298.15 K) ∆fGo (kJ/mol)(at 298.15 K) S8(s) 102 431 50 O2(g) 205 SO3 (g) -396 257 -371 2.1.1 Calculate ∆rGo , using only Gibbs energy values.2.1.2 Calculate the equilibrium constant, K, at 25oC for this reaction
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For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6(g)+H2(g)↽−−⇀2CH4(g) the standard change in Gibbs free energy is ΔG°=−32.8 kJ/mol . What is ΔG for this reaction at 298 K when the partial pressures are PC2H6=0.500 atm , PH2=0.100 atm , and PCH4=0.800 atm ?
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