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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)2Cr207(s) → Cr2O3(s) + N2(g) +4H2O(g) s° ΔΗΡ (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) NH,*(aq) N,H,(() (NH,),AsO,(aq) -80.29 111.3 -26.50 -132.51 113.4 -79.31 50.63 121.2 149.2 -1268 NH,Br(s) -270.83 113 -175.2 NH,CI(s) NH,CI(aq) -314.4 94.6 -201.5 - 300.2

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)2Cr207(s) → Cr2O3(s) + N2(g) +4H2O(g) s° ΔΗΡ (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) NH,*(aq) N,H,(() (NH,),AsO,(aq) -80.29 111.3 -26.50 -132.51 113.4 -79.31 50.63 121.2 149.2 -1268 NH,Br(s) -270.83 113 -175.2 NH,CI(s) NH,CI(aq) -314.4 94.6 -201.5 - 300.2

Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN:9781337399692
Author:Tro, Nivaldo J.
Publisher:Tro, Nivaldo J.
Chapter9: Energy For Today
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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)2Cr207(s) → Cr2O3(s) + N2(g) +4H2O(g) AH,° (kJ mol") s° U mol- K-') (k) mol') Species Nitrogen N;(g) N(g) NH,(g) 191.5 472.704 153.19 455.579 -46.11 192.3 -16.5 NH,(aq) NH,*(aq) -80.29 111.3 -26.50 -132.51 113.4 -79.31 N,H(€) 50.63 121.2 149.2 (NH,);AsO,(aq) NH,Br(s) -1268 -270.83 113 -175.2 NH,C(s) NH,Cl(aq) NH,HCO,(s) -314.4 94.6 -201.5 - 300.2 -847 12.1 -666 - 201.4 NH,I(s) NH,NO,(s) 117 -113 - 365.6 151.1 -184.0 (NH,);SO,(s) -1180.85 220.1 -901.67 NF,(g) -125 260.6 -83.3 210.7 86.57 NO(g) NO:(g) 90.25 33.2 240.0 51.30 N,O(g) 82.05 219.7 104.2 83.72 321.28 139.46 (3)'O°N 304.2 N,O,(g) 9.16 97.82 N;O;(g) N,O;(s) 11 356 115 -43.1 178 114
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)2Cr207(s) → Cr2O3(s) + N2(g) +4H2O(g) AH,° (kJ mol") s° U mol- K-') (k) mol') Species Nitrogen N;(g) N(g) NH,(g) 191.5 472.704 153.19 455.579 -46.11 192.3 -16.5 NH,(aq) NH,*(aq) -80.29 111.3 -26.50 -132.51 113.4 -79.31 N,H(€) 50.63 121.2 149.2 (NH,);AsO,(aq) NH,Br(s) -1268 -270.83 113 -175.2 NH,C(s) NH,Cl(aq) NH,HCO,(s) -314.4 94.6 -201.5 - 300.2 -847 12.1 -666 - 201.4 NH,I(s) NH,NO,(s) 117 -113 - 365.6 151.1 -184.0 (NH,);SO,(s) -1180.85 220.1 -901.67 NF,(g) -125 260.6 -83.3 210.7 86.57 NO(g) NO:(g) 90.25 33.2 240.0 51.30 N,O(g) 82.05 219.7 104.2 83.72 321.28 139.46 (3)'O°N 304.2 N,O,(g) 9.16 97.82 N;O;(g) N,O;(s) 11 356 115 -43.1 178 114
NO(g) NO;(g) 90.25 210.7 86.57 33.2 240.0 51.30 N,O(g) N;O,(g) 82.05 219.7 104.2 83.72 321.28 139.46 (S)*O°N_ (3)*O°N 9.16 304.2 97.82 11 356 115 N,O;(s) -43.1 178 114 NOCI(g) HNO,(€) HNO,(g) 52.59 264 66,36 -174.1 155.6 -80.79 -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,O(g) -241.8 188.7 -228.6 H;O;() -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 Cr,O;(s) Cr,Cl;(s) -1139.7 81.2 - 1058.1 -556.5 123.0 -486.1 (NH,) ¿Cr,O;(s) -1807 A -299.9 kJ/mol В 3,913.9 kJ/mol 299.9 kJ/mol D -3,913.9 kJ/mol
Transcribed Image Text:NO(g) NO;(g) 90.25 210.7 86.57 33.2 240.0 51.30 N,O(g) N;O,(g) 82.05 219.7 104.2 83.72 321.28 139.46 (S)*O°N_ (3)*O°N 9.16 304.2 97.82 11 356 115 N,O;(s) -43.1 178 114 NOCI(g) HNO,(€) HNO,(g) 52.59 264 66,36 -174.1 155.6 -80.79 -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,O(g) -241.8 188.7 -228.6 H;O;() -187.8 109.6 -120.4 Cbromium Cr(s) 23.8 Cr,O;(s) Cr,Cl;(s) -1139.7 81.2 - 1058.1 -556.5 123.0 -486.1 (NH,) ¿Cr,O;(s) -1807 A -299.9 kJ/mol В 3,913.9 kJ/mol 299.9 kJ/mol D -3,913.9 kJ/mol
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