1.2 2(1) In the contact process: 2SO₂(g) + O₂(g)2SO3(g) AH = -197 kJ mol-¹ Predict the position of equilibrium when: (a) both the temperature and pressure are decreased (b) the temperature is increased and the pressure is decreased (ii) Explain the reasoning for using compromise temperature and pressure in industrial processes

1.2 2(1) In the contact process: 2SO₂(g) + O₂(g)2SO3(g) AH = -197 kJ mol-¹ Predict the position of equilibrium when: (a) both the temperature and pressure are decreased (b) the temperature is increased and the pressure is decreased (ii) Explain the reasoning for using compromise temperature and pressure in industrial processes

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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The following reaction takes place into a constant-volume flask at 427°C: CCL(g) = C(s) +2 C2(g) AH=132 kJ At 427°C, the equilibrium constant for the reaction given above is K. = 1.3×10-2. A flask is filled with 2.00 atm of CCl4 at 427°C. (a) What is the value of K for this reaction? (R=0.082 L.atm/mol.K) (b) What are the partial pressures of CClL, Ch and the total pressure at equilibrium? (c) How will the equilibrium pressure of CCl(g) change if the temperature is increased? (d) How will the equilibrium system respond if the volume of the flask is reduced?
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12.48 The following reaction is in equilibrium in lake water: HCO3(aq) + H+ (aq) = H₂CO3(aq) Predict the change in the reaction quotient, Q, for each disturbance below and use that prediction to explain how the equilibrium is shifted by the stress. (a) NaHCO3 is added to the lake. (b) H₂CO3 is added. (c) NaOH is added.
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АPPENDI х В + Thermodynamic Data Thermodynamic Data for Selected Elements and Inorganic Compounds at 1 bar and 298 K“ Substance AfĦ°/kJ · mol¯! Af&/kJ· mol¯ §/J·K-1. mol T;,/J·K-1 .mol- Ag(s) 42.7 25.49 Ag+(aq) 105.9 77.11 72.68 37.66 AgBr(s) -99.5 -95.94 107.11 52.38 AgCl(s) -127.0 -109.72 96.2 50.79 AgI(s) -62.4 -66.3 114.2 54.43 AgNO3(s) -129.4 -33.41 140.9 93.05 Al(s) 28.32 24.34 Al3+ (aq) -531.0 -485 -321.7 AICI3(s) -704.2 -628.8 110.67 91.84 Al,O3(s) -1669.8 -1576.4 50.99 78.99 Ar(g) Ba(s) Ba2+(aq) 154.8 20.79 62.8 26.36 -537.6 -560.8 10 BaO(s) -553.5 -525.1 70.3 47.45 BaCl2(s) -858.6 -810.9 123.7 75.31 BaSO (s) -1464.4 -1353.1 132.2 101.75 Be(s) 9.54 17.82 BeO(s) -610.9 -581.6 14.1 25.4 Br2(1) 152.23 75.69 Br (aq) -121.6 -103.96 82.4 HBr(g) -36.4 -53.45 198.7 29.12 C(graphite) 5.7 8.52 C(diamond) 1.90 2.87 2.4 6.11 CO(g) -110.5 -137.3 197.9 29.14 CO2(9) -393.5 -394.4 213.6 37.1 "Data are mostly from the NBS Tables of Chemical Thermodynamic Properties (1982). The values for ions…