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34. Use Hess's law to calculate AH for the decomposition of CS2(1) to its elements. CS:(1) → C(s) + 2S(s) Use Table 8.3 and the following thermochemical equations: (1) formation of CO, from its elements at 25°C (2) formation of SO, from its elements at 25°C (3) CO.e) + 2S0(e) → CS.(1) + 30,(0) AH = +1103.9 kl

34. Use Hess's law to calculate AH for the decomposition of CS2(1) to its elements. CS:(1) → C(s) + 2S(s) Use Table 8.3 and the following thermochemical equations: (1) formation of CO, from its elements at 25°C (2) formation of SO, from its elements at 25°C (3) CO.e) + 2S0(e) → CS.(1) + 30,(0) AH = +1103.9 kl

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.96PAE
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Compounds AgBr(s) -100.4 Cacl2(s) -795.8 H2O(g) -241.8 NH4NO3(s)-365.6 AgCl(s) -127.1 Caco3(s) -1206.9 H2O(1) |-285.8 NO(g) +90.2 Agl(s) -61.8 Cao(S) -635.1 H2O2(1) -187.8 NO2(g) +33.2 AGNO3(s) -124.4 Ca(OH)2(s) -986.1 H25(g) -20.6 N204(g) +9.2 Ag20(s) -31.0 CasO4(s) |-1434.1 H2S04() -814.0 Nacl(s) -411.2 Al203(s) |-1675.7 Cdcl2(s) -391.5 HgO(s) -90.8 NaF(s) -573.6 Bacl2(s) -858.6 cdo(s) -258.2 KBr(s) |-393.8 NaOH(s) |-425.6 BaCO3(s) -1216.3 Cr203(s) -1139.7 KCI(s) -436.7 NIO(s) |-239.7 BaO(s) -553.5 CuO(s) -157.3 KCIO3(s) -397.7 PbBr2(s) -278.7 BaSO4(s) |-1473.2 Cu20(s) -168.6 KCIO4(s) -432.8 PbCl2(s) -359.4 CC14(1) |-135.4 Cus(s) KNO3(s) PbO(s) |-219.0 -53.1 -494.6 CHCI3(I) -134.5 Cu2s(s) -79.5 MgCl2(s) -641.3 PbO2(s) -277.4 CH4(g) -74.8 Cuso4(s) -771.4 MgCO3(5) -1095.8 PCI3(g) |-287.0 C2H2(g) +226.7 Fe(OH)3(s) -823.0 Mgo(s) -601.7 PCI5(9) -374.9 C2H4(g) +52.3 Fe203(s) -824.2 Mg(OH)2(5) -924.5 SIO2(s) -910.9 C2H6(g) -84.7 Fe304(s) |-1118.4 MgSO4(s) |-1284.9 Sno2(s) -580.7 C3H8(g) |-103.8 HBr(g) -36.4 MnO(s) SO2(g) -296.8 -385.2 |снзон(-238.7 HCl(g) -92.3 MnO2(s) -520.0 SO3(g) -395.7 C2H5OH() -277.7 HF(g) -271.1 NH3(g) -46.1 Znl2(s) |-208.0 Colg) -110.5 HI(g) +26.5 N2H4(1) +50.6 ZnO(s) |-348.3 CO2(g) -393.5 HNO3() -174.1 NH4Cl(s) -314.4 ZnS(s) -206.0 Cations Anions Ag+(aq) +105.6 Hg2+(aq) +171.1 Br2(aq) -121.6 НРО4 |-1292.1 Al3+(ag) -531.0 K+(aq) |-252.4| CO32-(aq) -677.1 HSO4-(aq) -887.3 Ba2+(aq) -537.6 Mg2+(aq) -466.8 Cl-(aq) -167.2 I-(aq) -55.2 Ca2+(ag) -542.8 Mn2+(aq) -220.8 ClO3-(aq) -104.0 Mn04-(aq) -541.4 Cd2+(ag) -75.9 Na+(aq) -240.1 Cl04-(aq) -129.3 NO2-(aq) |-104.6 Cu+(aq) +71.7 NH4+(ag) -132.5 Cro42-(ag) -881.2 NO3-(ag) -205.0 Cu2+(aq) +64.8 Ni2+(aq) -54.0 Cr2072-(ag) -1490.3 OH2(aq) -230.0 Fe2+(aq) -89.1 Pb2+(aq) -1.7 F-(aq) -332.6 PO43-(ag) |-1277.4 Fe3+(ag) -48.5Sn2+(aq) -8.8 нсо3-(aq) |-692.0 S2-(aq) +33.1 H+(aq) 0.0 Zn2+(ag) -153.9 H2PO4-(ag|-1296.3 SO42-(ag) -909.3
Transcribed Image Text:Compounds AgBr(s) -100.4 Cacl2(s) -795.8 H2O(g) -241.8 NH4NO3(s)-365.6 AgCl(s) -127.1 Caco3(s) -1206.9 H2O(1) |-285.8 NO(g) +90.2 Agl(s) -61.8 Cao(S) -635.1 H2O2(1) -187.8 NO2(g) +33.2 AGNO3(s) -124.4 Ca(OH)2(s) -986.1 H25(g) -20.6 N204(g) +9.2 Ag20(s) -31.0 CasO4(s) |-1434.1 H2S04() -814.0 Nacl(s) -411.2 Al203(s) |-1675.7 Cdcl2(s) -391.5 HgO(s) -90.8 NaF(s) -573.6 Bacl2(s) -858.6 cdo(s) -258.2 KBr(s) |-393.8 NaOH(s) |-425.6 BaCO3(s) -1216.3 Cr203(s) -1139.7 KCI(s) -436.7 NIO(s) |-239.7 BaO(s) -553.5 CuO(s) -157.3 KCIO3(s) -397.7 PbBr2(s) -278.7 BaSO4(s) |-1473.2 Cu20(s) -168.6 KCIO4(s) -432.8 PbCl2(s) -359.4 CC14(1) |-135.4 Cus(s) KNO3(s) PbO(s) |-219.0 -53.1 -494.6 CHCI3(I) -134.5 Cu2s(s) -79.5 MgCl2(s) -641.3 PbO2(s) -277.4 CH4(g) -74.8 Cuso4(s) -771.4 MgCO3(5) -1095.8 PCI3(g) |-287.0 C2H2(g) +226.7 Fe(OH)3(s) -823.0 Mgo(s) -601.7 PCI5(9) -374.9 C2H4(g) +52.3 Fe203(s) -824.2 Mg(OH)2(5) -924.5 SIO2(s) -910.9 C2H6(g) -84.7 Fe304(s) |-1118.4 MgSO4(s) |-1284.9 Sno2(s) -580.7 C3H8(g) |-103.8 HBr(g) -36.4 MnO(s) SO2(g) -296.8 -385.2 |снзон(-238.7 HCl(g) -92.3 MnO2(s) -520.0 SO3(g) -395.7 C2H5OH() -277.7 HF(g) -271.1 NH3(g) -46.1 Znl2(s) |-208.0 Colg) -110.5 HI(g) +26.5 N2H4(1) +50.6 ZnO(s) |-348.3 CO2(g) -393.5 HNO3() -174.1 NH4Cl(s) -314.4 ZnS(s) -206.0 Cations Anions Ag+(aq) +105.6 Hg2+(aq) +171.1 Br2(aq) -121.6 НРО4 |-1292.1 Al3+(ag) -531.0 K+(aq) |-252.4| CO32-(aq) -677.1 HSO4-(aq) -887.3 Ba2+(aq) -537.6 Mg2+(aq) -466.8 Cl-(aq) -167.2 I-(aq) -55.2 Ca2+(ag) -542.8 Mn2+(aq) -220.8 ClO3-(aq) -104.0 Mn04-(aq) -541.4 Cd2+(ag) -75.9 Na+(aq) -240.1 Cl04-(aq) -129.3 NO2-(aq) |-104.6 Cu+(aq) +71.7 NH4+(ag) -132.5 Cro42-(ag) -881.2 NO3-(ag) -205.0 Cu2+(aq) +64.8 Ni2+(aq) -54.0 Cr2072-(ag) -1490.3 OH2(aq) -230.0 Fe2+(aq) -89.1 Pb2+(aq) -1.7 F-(aq) -332.6 PO43-(ag) |-1277.4 Fe3+(ag) -48.5Sn2+(aq) -8.8 нсо3-(aq) |-692.0 S2-(aq) +33.1 H+(aq) 0.0 Zn2+(ag) -153.9 H2PO4-(ag|-1296.3 SO42-(ag) -909.3
34. Use Hess's law to calculate AH for the decomposition of CS2(1) to its elements. CS;(1) – C(s) + 2S(s) Use Table 8.3 and the following thermochemical equations: (1) formation of CO, from its elements at 25°C (2) formation of SO, from its elements at 25°C (3) CO,(g) + 2S0,(g) CS,(1) + 3 O2(g) AH = +1103.9 kJ
Transcribed Image Text:34. Use Hess's law to calculate AH for the decomposition of CS2(1) to its elements. CS;(1) – C(s) + 2S(s) Use Table 8.3 and the following thermochemical equations: (1) formation of CO, from its elements at 25°C (2) formation of SO, from its elements at 25°C (3) CO,(g) + 2S0,(g) CS,(1) + 3 O2(g) AH = +1103.9 kJ
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