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
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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
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

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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