Problem 24. The thermodynamics of decomposition reactions The thermodynamic data of the species involved in the reactions are listed in the table below: Ag₂CO3(s) Ag₂O(s) CO₂(g) AH (298K) (kJ mol-¹) -501.66 -30.58 -393.51 S (298K) (J mol-¹ K-¹) 167.4 121.8 213.8 m Cpm (J mol-¹ K-¹) 109.6 65.7 37.6 24-1 The decomposition of Ag2CO3 proceeds with the chemical equation: Ag2CO3(s) →Ag2O(s) + CO₂(g). Calculate the standard equilibrium constant, K (298 K), of the reaction at 298 K. 24-2 The enthalpy and entropy changes with temperature are given by the equations: AH (T₂)=AH (T) +AC (T₂-T₂) AS (T₂)=4,S (T₂)+A,C in ¹2 T₁ In order to dry Ag2CO3(s) with a hot air flow under a constant pressure of 105 Pa and a constant temperature of 383 K, calculate the minimum partial pressure of CO2(g) needed in the air flow to avoid the decomposition of Ag2CO3(s).

Problem 24. The thermodynamics of decomposition reactions The thermodynamic data of the species involved in the reactions are listed in the table below: Ag₂CO3(s) Ag₂O(s) CO₂(g) AH (298K) (kJ mol-¹) -501.66 -30.58 -393.51 S (298K) (J mol-¹ K-¹) 167.4 121.8 213.8 m Cpm (J mol-¹ K-¹) 109.6 65.7 37.6 24-1 The decomposition of Ag2CO3 proceeds with the chemical equation: Ag2CO3(s) →Ag2O(s) + CO₂(g). Calculate the standard equilibrium constant, K (298 K), of the reaction at 298 K. 24-2 The enthalpy and entropy changes with temperature are given by the equations: AH (T₂)=AH (T) +AC (T₂-T₂) AS (T₂)=4,S (T₂)+A,C in ¹2 T₁ In order to dry Ag2CO3(s) with a hot air flow under a constant pressure of 105 Pa and a constant temperature of 383 K, calculate the minimum partial pressure of CO2(g) needed in the air flow to avoid the decomposition of Ag2CO3(s).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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