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monium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes". Using given data, calculate the heat of reaction for the following reaction: (NH4)2Cr2O7(s) –→ Cr2O3(s) + N2(g) +4H2O(g) AH (k) mol") U mol K) AG (k) mol") Species Nitrogen N(g) 191.5 N(g) NH,(g) 472.704 153.19 455.579 -46.11 192.3 -16.5 NH,(aq) -80.29 111.3 -26.50 NH,"(aq) -132.51 113.4 -79.31 50.63 121.2 149.2 (NH.),AsO(aq) -1268 NH,Br(s) -270.83 113 -175.2 NH,C6) -314.4 94.6 -201.5 NH,Caq) - 300.2 NH,HCO,() -847 12.1 -666 NH,I6) -201.4 117 -113 NH,NO,6) - 365.6 151.1 -184.0 (NH),SO) -1180.85 220.1 -901.67 NF,(g) NO(g) NO,(g) -125 260.6 -83.3 90.25 210.7 86.57 33.2 240.0 51.30 N,Og) 82.05 219.7 104.2 N;O,(g) N;O(g) N,0,(g) 83.72 321.28 139.46 9.16 304.2 97.82 11 356 115 N,O,6) -43.1 178 114 NOCI) 52.59 264 66.36 HNO,(0 -174.1 155.6 -80.79 HNO,(g) -135.1 266.2 -74.77 HNO, (aq) -206.6 146 -110.5 Hydrogen H(g) 218.0 114.6 203.3 H;(g) 130.6 H,O() -285.8 69.91 -237.2 H,Og) H;O(0) -241.8 188.7 -228.6 -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 CrO,(s) Cr,Cl,6) (NH,) Cr0,() -1139.7 81.2 -1058.1 -556.5 123.0 -486.1 -1807

monium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes". Using given data, calculate the heat of reaction for the following reaction: (NH4)2Cr2O7(s) –→ Cr2O3(s) + N2(g) +4H2O(g) AH (k) mol") U mol K) AG (k) mol") Species Nitrogen N(g) 191.5 N(g) NH,(g) 472.704 153.19 455.579 -46.11 192.3 -16.5 NH,(aq) -80.29 111.3 -26.50 NH,"(aq) -132.51 113.4 -79.31 50.63 121.2 149.2 (NH.),AsO(aq) -1268 NH,Br(s) -270.83 113 -175.2 NH,C6) -314.4 94.6 -201.5 NH,Caq) - 300.2 NH,HCO,() -847 12.1 -666 NH,I6) -201.4 117 -113 NH,NO,6) - 365.6 151.1 -184.0 (NH),SO) -1180.85 220.1 -901.67 NF,(g) NO(g) NO,(g) -125 260.6 -83.3 90.25 210.7 86.57 33.2 240.0 51.30 N,Og) 82.05 219.7 104.2 N;O,(g) N;O(g) N,0,(g) 83.72 321.28 139.46 9.16 304.2 97.82 11 356 115 N,O,6) -43.1 178 114 NOCI) 52.59 264 66.36 HNO,(0 -174.1 155.6 -80.79 HNO,(g) -135.1 266.2 -74.77 HNO, (aq) -206.6 146 -110.5 Hydrogen H(g) 218.0 114.6 203.3 H;(g) 130.6 H,O() -285.8 69.91 -237.2 H,Og) H;O(0) -241.8 188.7 -228.6 -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 CrO,(s) Cr,Cl,6) (NH,) Cr0,() -1139.7 81.2 -1058.1 -556.5 123.0 -486.1 -1807

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 27E: The addition of 3.15 g of Ba(OH)28H2O to a solution of 1.52 g of NH4SCN in loo g of water in a...
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Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes". Using the given data, calculate the heat of reaction for the following reaction: (NH4)2Cr2O7(s) → Cr2O3(s) + N2(g) +4H20(g) AH (k) mol-") S° U mol- K-') AG° (kJ mol) Species Nitrogen N(g) 191.5 N(g) 472.704 153.19 455.579 NH,(g) NH,(aq) NH,*(aq) -46.11 192.3 -16.5 -80.29 111.3 -26.50 -132.51 113.4 -79.31 N,H,(€) (NH,),ASO((aq) NH,Br(s) 50.63 121.2 149.2 -1268 -270.83 113 -175.2 NH,CIs) NH,CI(aq) NH,HCO,(s) -314.4 94.6 -201.5 - 300.2 -847 12.1 -666 NH,I(s) NH,NO,(s) -201.4 117 -113 - 365.6 151.1 -184.0 (NH,),SO,(s) -1180.85 220.1 -901.67 NF,(g) -125 260.6 -83.3 90.25 210.7 86.57 NO(g) NO,(g) 33.2 240.0 51.30 N,O(g) 82.05 219.7 104.2 N,O,(g) 83.72 321.28 139.46 N,O.(g) N,0,(g) N;O,(s) NOCI(g) HNO,(() 9.16 304.2 97.82 11 356 115 -43.1 178 14 52.59 264 66.36 -174.1 155.6 -80.79 HNO,(g) -135.1 266.2 -74.77 HNO, (aq) -206.6 146 -110.5 Hydrogen H(g) H(g) 218.0 114.6 203.3 130.6 H,O(0) -285.8 69.91 -237.2 -241.8 H;O(g) H;O;() 188.7 -228.6 -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 Cr,O,(s) -1139.7 81.2 -1058.1 Cr,Cl,(s) -556.5 123.0 -486.1 (NH,) ¿Cr,O;(s) -1807
Transcribed Image Text:Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes". Using the given data, calculate the heat of reaction for the following reaction: (NH4)2Cr2O7(s) → Cr2O3(s) + N2(g) +4H20(g) AH (k) mol-") S° U mol- K-') AG° (kJ mol) Species Nitrogen N(g) 191.5 N(g) 472.704 153.19 455.579 NH,(g) NH,(aq) NH,*(aq) -46.11 192.3 -16.5 -80.29 111.3 -26.50 -132.51 113.4 -79.31 N,H,(€) (NH,),ASO((aq) NH,Br(s) 50.63 121.2 149.2 -1268 -270.83 113 -175.2 NH,CIs) NH,CI(aq) NH,HCO,(s) -314.4 94.6 -201.5 - 300.2 -847 12.1 -666 NH,I(s) NH,NO,(s) -201.4 117 -113 - 365.6 151.1 -184.0 (NH,),SO,(s) -1180.85 220.1 -901.67 NF,(g) -125 260.6 -83.3 90.25 210.7 86.57 NO(g) NO,(g) 33.2 240.0 51.30 N,O(g) 82.05 219.7 104.2 N,O,(g) 83.72 321.28 139.46 N,O.(g) N,0,(g) N;O,(s) NOCI(g) HNO,(() 9.16 304.2 97.82 11 356 115 -43.1 178 14 52.59 264 66.36 -174.1 155.6 -80.79 HNO,(g) -135.1 266.2 -74.77 HNO, (aq) -206.6 146 -110.5 Hydrogen H(g) H(g) 218.0 114.6 203.3 130.6 H,O(0) -285.8 69.91 -237.2 -241.8 H;O(g) H;O;() 188.7 -228.6 -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 Cr,O,(s) -1139.7 81.2 -1058.1 Cr,Cl,(s) -556.5 123.0 -486.1 (NH,) ¿Cr,O;(s) -1807
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