Use data from Appendix attachede to calculate ΔS∘rxnΔ�rxn∘ for each of the reactions given. 3NO2(g)+H2O(l)→2HNO3(aq)+NO(g) Express your answer as an integer in J/K.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Use data from Appendix attachede to calculate ΔS∘rxnΔ�rxn∘ for each of the reactions given.
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ISA LSA
A-16
H
H(aq)
H(aq)
H₂(g)
Substance
MgO(s)
Mg(OH)₂(s)
MgSO₂ (s)
Mg N₂(s)
Manganese
Mn(s)
Mn(g)
Mn²(aq)
MnO(s)
MnO₂(s)
MnO₂ (aq)
Mercury
Hg(1)
Hg(g)
Hg(ac)
Hg,2(aq)
HgCl₂(s)
HgO(s)
HgS(s)
HgCl₂(s)
Nickel
Ni(s)
Ni(g)
NiCl (s)
NiO(s)
NIS(s)
Nitrogen
N(g)
N₂(g)
NF₂(g)
NHƯỢU
Nha
NHĩ loại
NH₂Br(s)
NH₂Cl(s)
NH₂CN(s)
NH₂F(s)
NH₂HCO₂ (s)
NHI
NH₂NO₂ (s)
NHINO log
HNO₂(g)
HNO₂(aq)
NO(g)
NO₂(g)
NO₂ (aq)
NOBrig)
NOCI(g)
N₂H₂(1)
N₂H₂(g)
N₂O(g)
Substance
KOH(s)
KOH(aq)
KO(s)
K₂CO₂ (s)
K₂O(s)
K₂O₂(s)
0
1536.3
0
Q Search
0
280.7
-219.4
-385.2
-520.0
-529.9
0
61.4
AH(kJ/mol) AG₁(kJ/mol) S°(J/mol.K)
-601.6
-569.3
27.0
-924.5
-1284.9
-833.5
-1170.6
63.2
91.6
88
-461
-401
170.21
166.87
-224,3
-90.8
-58.2
-265.4
0
429.7
-305.3
-239.7
-82.0
472.7
0
-132.1
-45.9
-80,29
-133.26
-270.8
-314.4
0.4
-464.0
-849.4
-201.4
-365.6
-339.9
-133.9
-207
P
91.3
33.2
-206.85
82.2
51.7
50.6
95.4
81.6
0
1517.1
0
-361.5
-494.1
0
238.5
-225.6
-362.9
-465.1
-436.2
0
31.8
164.4
153.5
-178.6
-58.5
-50.6
-210.7
0
384.5
-259.0
-211.7
-79.5
455.5
0
90.6
-164
-26.50
-79.31
-175.2
-202.9
-348.7
-665.9
-112.5
-183.9
-190.6
-73.5
-110.9
87.6
51.3
-110.2
82.4
66.1
149.3
159.4
103.7
0
-440.5
-239.4
-1063.5
130.7
-322.1
-425.1
32.0
173.7
-78.8
59.7
53.1
190.6
75.9
175.0
-36.19
65.74
146.0
70.3
82.4
191.6
29.9
182.2
97.7
37.99
53.0
153.3
191.6
260.8
192.8
111.3
111.17
113.0
94.6
AH(kJ/mol) AG₁(kJ/mol) S°(J/mol.K)
-424.6
-379.4
81.2
-482.4
-284.9
-1151.0
72.0
120.9
117.0
151.1
259.8
266.9
146
210.8
240.1
146.70
273.7
261.7
121.2
238.5
220.0
91.6
116.7
155.5
94.14
102.1
MgCl;(s)
MgCO₂ (s)
MgF₂(s)
Substance
N₂O₂(1)
N₂O₂(g)
N₂O₂ (s)
N₂O₂(g)
Oxygen
O(g)
O₂(g)
O₂(g)
OH(aq)
H₂O(l)
H₂O(g)
H₂O₂(1)
H₂O₂(g)
Phosphorus
Pls, white)
Pls, red)
P(g)
P₂(g)
P₂(g)
PC₂()
PC₂(g)
PC(s)
PCI(g)
PF, (q)
PH₂(g)
POCI()
POCI(g)
PO₂ (aq)
HPO2 (aq)
H₂PO₂ (aq)
H₂PO4(s)
H₂PO₂(aq)
P₂O(S)
PO₁0(5)
Platinum
Pt(s)
Pt(g)
Potassium
Kis)
K(g)
K*(aq)
KB (s)
KCNS
KCI(s)
KCIO,(s)
KCIO₂(3)
KF(s)
KI(s)
KNO₂ (s)
Substance
NaClO(s)
NaF(s)
NaHCO(s)
NaHSO₂ (s)
Nal(s)
NaNO(s)
-641.3
-1095.8
-1124.2
13.3
AH(kJ/mol) AG₁(kJ/mol) S(J/mol.K)
-19.5
97.5
209.2
9.16
99.8
113.9
117.1
249.2
0
142.7
-230.02
-285.8
-241.8
-187.8
-136.3
0
-17.6
316.5
58.9
-319.7
-287.0
-443.5
-374,9
-1594.4
5.4
-597.1
-558.5
-1277.4
-1292.1
-1296.3
-1284.4
-1288.3
-1640,1
-2984
0
565.3
0
89.0
-252.14
-393.8
-113.0
-436.5
-397.7
432.8
-591.8
-1012.1
-1071.1
-567.3
-327.9
-494.6
231.7
0
163.2
-157.3
-237.1
-228.6
-120.4
-105.6
0
-12.1
280.1
103.5
24.4
-272.3
-267.8
-305.0
-1520.7
13.5
-520.8
-512.9
-1018.7
-1089.2
-1130.2
-1124.3
-1142.6
-2698
0
520.5
0
-283.3
-380.7
-101.9
-408.5
-296.3
303.1
-537.8
-324.9
-394.9
89.6
65.7
57.2
-262.3
-546.3
-851.0
-992.8
-286.1
-367.0
304,4
178.2
355.7
161.1
205.2
238.9
-10.90
70.0
188.8
109.6
41.1
22.8
163.2
218.1
280.0
217.
311.8
LLLLLLLL
364,6
300.8
210.2
222.5
325.5
220.5
-33.5
90.4
110.5
158.2
228.9
41.6
192.4
64.7
160.3
101.2
AH(kJ/mol) AG₁(kJ/mol) S(J/mol.K)
-365.8
123.4
-576.6
51.1
-950.8
101.7
-1125.5
113.0
-287.8
98.5
-467.9
116.5
95.9
128.5
82.6
143.1
151.0
66.6
106.3
133.1
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