ДН; AG (kj/mol) (ki/mol) G/mol-K) S* ДНЯ (kj/mol) AG Substance 209.2 Substance (i/mol-K) 226.77 200.8 (ki/mol) C2H2(8) Aluminum 52.30 68.11 219.4 C2H4(8) -32.89 Al(s) 28.32 -84.68 229.5 AICI3(s) C2H6(8) -23.47 109.3 103.85 -705.6 -630.0 269.9 Al,O3(s) C3H3(8) -15.71 51.00 - 124.73 - 1669.8 -1576.5 C,H10(8) 310.0 - 147.6 -15.0 Barium C,H10(1) 231.0 82.9 129.7 Ba(s) 63.2 C,H6(8) 269.2 ВаСОз(s) 49.0 124.5 - 1137.6 112.1 172.8 -1216.3 C,H.(1) BaO(s) 70.42 -201.2 -161.9 237.6 -553.5 -525.1 CH;OH(g) -238.6 -166.23 Beryllium CH3OH(I) 126.8 -235.1 - 168.5 Be(s) 9.44 CЭH-ОН(3) 282.7 0. -277.7 -174.76 BeO(s) -608.4 -579.1 13.77 CЭH,ОН() 160.7 - 1273.02 -910.4 Be(OH)2(s) -905.8 50.21 C,H12O6(s) 212.1 -817.9 -110.5 - 137.2 197.9 Bromine CO(8) -393.5 -394.4 213.6 Br(g) CO2(8) 111.8 82.38 174.9 -487.0 -392.4 159.8 Br (aq) CH;COOH(1) -120.9 - 102.8 80.71 Br2(8) 30.71 3.14 245.3 Cesium Br2(1) 0. 0. 152.3 Cs(g) 76.50 49.53 175.6 HBr(g) -36.23 -53.22 198.49 Cs(1) 2.09 0.03 92.07 Cs(s) 0. 0. 85.15 Calcium 154.8 CSC1(s) -442.8 -414.4 101.2 Ca(g) 179.3 145.5 Ca(s) 0. 41.4 Chlorine CACO3(s, calcite) -1207.1 -1128.76 92.88 121.7 105.7 165.2 CI(g) CaCl2(s) -795.8 -748.1 104.6 CI(aq) -167.2 -131.2 56.5 CaF2(s) -1219.6 -1167.3 68.87 GT:TO_RY Cl2(8) 0. 222.96 CaO(s) -635.5 -604.17 39.75 56.5 HCl(aq) -167.2 -131.2 Ca(OH)2(s) -986.2 -898.5 83.4 HCI8) 186.69 -92.30 -95.27 CaSO (s) -1434.0 -1321.8 106.7 Chromium Carbon Cr(g) 397.5 352.6 174.2 C(8) 718.4 672.9 158.0 23.6 Cr(s) 0. 0. C(s, diamond) C(s, graphite) 1.88 2.84 2.43 81.2 Cr,O3(s) -1139.7 -1058.1 0. 0. 5.69 CCI4(8) -106.7 -64.0 309.4 Cobalt 179 CCL,(1) -139.3 -68.6 214.4 Co(g) 439 393 28.4 CFA(8) -679.9 -635.1 262.3 Co(s) 0. CH4(8) -74.8 -50.8 186.3 88 thalpy change for each of the following reactions: →2 SO3(g) pletely 5.73 Using values from Appendix C, calculate the standard er (a) 2 SO2(8) + O2(g) (b) Mg(OH)2(s) – (c) N2O4(8) + 4 H2(8) (d) SICI4(1) + 2 H20(1) → SiO2(s) + 4 HC1(8) 5.74 Using values from Appendix C, calculate the value of AH° fC → MgO(s) + H2O(1) N2(8) + 4 H2O(g) each of the following reactions: CaCl2(s) + H20(g) (a) CaO(s) + 2 HC1(g) (b) 4 FeO(s) + O2(g) (c) 2 CuO(s) + NO(g) (d) 4 NH3(8) + O2(8) →2 Fe2O3(s) Cu20(s) + NO2(8) 2 N2H4(8) + 2 H2O(I) S.75 Complete combustion of 1 mol of acetone (C3H,O) liberate 1790 kJ: C3H,O(1) + 4 O2(g) →3 CO2(8) + 3 H20(1) AH° = -1790 k Using this information together with the standard en- thalpies of formation of O2(g), CO2(g), and H20(1) from Appendix C, calculate the standard enthalpy of formation of acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene- (CH2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): CaC2(s) + 2 H,O(1) > 537 Gasolin Ca(OH)2(s) + C2H2(8)

ДН; AG (kj/mol) (ki/mol) G/mol-K) S* ДНЯ (kj/mol) AG Substance 209.2 Substance (i/mol-K) 226.77 200.8 (ki/mol) C2H2(8) Aluminum 52.30 68.11 219.4 C2H4(8) -32.89 Al(s) 28.32 -84.68 229.5 AICI3(s) C2H6(8) -23.47 109.3 103.85 -705.6 -630.0 269.9 Al,O3(s) C3H3(8) -15.71 51.00 - 124.73 - 1669.8 -1576.5 C,H10(8) 310.0 - 147.6 -15.0 Barium C,H10(1) 231.0 82.9 129.7 Ba(s) 63.2 C,H6(8) 269.2 ВаСОз(s) 49.0 124.5 - 1137.6 112.1 172.8 -1216.3 C,H.(1) BaO(s) 70.42 -201.2 -161.9 237.6 -553.5 -525.1 CH;OH(g) -238.6 -166.23 Beryllium CH3OH(I) 126.8 -235.1 - 168.5 Be(s) 9.44 CЭH-ОН(3) 282.7 0. -277.7 -174.76 BeO(s) -608.4 -579.1 13.77 CЭH,ОН() 160.7 - 1273.02 -910.4 Be(OH)2(s) -905.8 50.21 C,H12O6(s) 212.1 -817.9 -110.5 - 137.2 197.9 Bromine CO(8) -393.5 -394.4 213.6 Br(g) CO2(8) 111.8 82.38 174.9 -487.0 -392.4 159.8 Br (aq) CH;COOH(1) -120.9 - 102.8 80.71 Br2(8) 30.71 3.14 245.3 Cesium Br2(1) 0. 0. 152.3 Cs(g) 76.50 49.53 175.6 HBr(g) -36.23 -53.22 198.49 Cs(1) 2.09 0.03 92.07 Cs(s) 0. 0. 85.15 Calcium 154.8 CSC1(s) -442.8 -414.4 101.2 Ca(g) 179.3 145.5 Ca(s) 0. 41.4 Chlorine CACO3(s, calcite) -1207.1 -1128.76 92.88 121.7 105.7 165.2 CI(g) CaCl2(s) -795.8 -748.1 104.6 CI(aq) -167.2 -131.2 56.5 CaF2(s) -1219.6 -1167.3 68.87 GT:TO_RY Cl2(8) 0. 222.96 CaO(s) -635.5 -604.17 39.75 56.5 HCl(aq) -167.2 -131.2 Ca(OH)2(s) -986.2 -898.5 83.4 HCI8) 186.69 -92.30 -95.27 CaSO (s) -1434.0 -1321.8 106.7 Chromium Carbon Cr(g) 397.5 352.6 174.2 C(8) 718.4 672.9 158.0 23.6 Cr(s) 0. 0. C(s, diamond) C(s, graphite) 1.88 2.84 2.43 81.2 Cr,O3(s) -1139.7 -1058.1 0. 0. 5.69 CCI4(8) -106.7 -64.0 309.4 Cobalt 179 CCL,(1) -139.3 -68.6 214.4 Co(g) 439 393 28.4 CFA(8) -679.9 -635.1 262.3 Co(s) 0. CH4(8) -74.8 -50.8 186.3 88 thalpy change for each of the following reactions: →2 SO3(g) pletely 5.73 Using values from Appendix C, calculate the standard er (a) 2 SO2(8) + O2(g) (b) Mg(OH)2(s) – (c) N2O4(8) + 4 H2(8) (d) SICI4(1) + 2 H20(1) → SiO2(s) + 4 HC1(8) 5.74 Using values from Appendix C, calculate the value of AH° fC → MgO(s) + H2O(1) N2(8) + 4 H2O(g) each of the following reactions: CaCl2(s) + H20(g) (a) CaO(s) + 2 HC1(g) (b) 4 FeO(s) + O2(g) (c) 2 CuO(s) + NO(g) (d) 4 NH3(8) + O2(8) →2 Fe2O3(s) Cu20(s) + NO2(8) 2 N2H4(8) + 2 H2O(I) S.75 Complete combustion of 1 mol of acetone (C3H,O) liberate 1790 kJ: C3H,O(1) + 4 O2(g) →3 CO2(8) + 3 H20(1) AH° = -1790 k Using this information together with the standard en- thalpies of formation of O2(g), CO2(g), and H20(1) from Appendix C, calculate the standard enthalpy of formation of acetone. 5.76 Calcium carbide (CaC2) reacts with water to form acetylene- (CH2) and Ca(OH)2. From the following enthalpy of reac- tion data and data in Appendix C, calculate AH for CaC2(s): CaC2(s) + 2 H,O(1) > 537 Gasolin Ca(OH)2(s) + C2H2(8)

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter21: Rates Of Chemical Reactions, Ii. A Clock Reaction

Section: Chapter Questions

Problem 2ASA

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