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2CH3COONH4 ๐Ÿ”ฅโ†’ 2NOโ†‘ + CO2โ†‘ + 3C + 7H2โ†‘

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Decomposition of ammonium acetate
2CH3COONH4Ammonium acetate
๐Ÿ”ฅ
โŸถ
2NOโ†‘Nitrogen monoxide + CO2โ†‘Carbon dioxide + 3CCarbon + 7H2โ†‘Hydrogen

Decomposition of ammonium acetate yields nitrogen monoxide, carbon dioxide, carbon, and hydrogen (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Decomposition of ammonium acetate
2CH3COONH4Ammonium acetate
๐Ÿ”ฅ
โŸถ
2NOโ†‘Nitrogen monoxide + CO2โ†‘Carbon dioxide + 3CCarbon + 7H2โ†‘Hydrogen

General equation

Thermal decomposition with redox
Thermally decomposable substanceSelf redox agent
๐Ÿ”ฅ
โŸถ
ProductOxidation product + ProductReduction product
Thermal decomposition of oxoacid salt with redox
Oxoacid saltSelf redox agent
๐Ÿ”ฅ
โŸถ
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Decomposition of ammonium acetate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CH3COONH4Ammonium acetate2
Self redox agent
Thermally decomposable
Oxoacid salt

Products

Chemical formulaNameCoefficientTypeType in general
equation
NONitrogen monoxide2
Oxidized
โ€“
CO2Carbon dioxide1
Oxidized
โ€“
CCarbon3
Redoxed product
โ€“
H2Hydrogen7
Reduced
โ€“

Thermodynamic changes

Changes in standard condition (1)

Decomposition of ammonium acetate
2CH3COONH4Crystalline solid
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Gas + 3CCrystalline solidgraphite + 7H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
1019.27โ€“โ€“โ€“
per 1 mol of
509.635โ€“โ€“โ€“
per 1 mol of
509.635โ€“โ€“โ€“
per 1 mol of
1019.27โ€“โ€“โ€“
per 1 mol of
339.757โ€“โ€“โ€“
per 1 mol of
145.610โ€“โ€“โ€“

Changes in standard condition (2)

Decomposition of ammonium acetate
2CH3COONH4Crystalline solid
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Gas + 3CCrystalline soliddiamond + 7H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
1024.96โ€“โ€“โ€“
per 1 mol of
512.480โ€“โ€“โ€“
per 1 mol of
512.480โ€“โ€“โ€“
per 1 mol of
1024.96โ€“โ€“โ€“
per 1 mol of
341.653โ€“โ€“โ€“
per 1 mol of
146.423โ€“โ€“โ€“

Changes in aqueous solution (1)

Decomposition of ammonium acetate
โ—†
ฮ”rG675.96 kJ/mol
K0.38 ร— 10โˆ’118
pK118.42
2CH3COONH4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Gas + 3CCrystalline solidgraphite + 7H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
1024.03675.961167.3176.9
per 1 mol of
512.015337.98583.6588.45
per 1 mol of
512.015337.98583.6588.45
per 1 mol of
1024.03675.961167.3176.9
per 1 mol of
341.343225.32389.1058.97
per 1 mol of
146.29096.566166.7625.27

Changes in aqueous solution (2)

Decomposition of ammonium acetate
โ—†
ฮ”rG799.2 kJ/mol
K0.97 ร— 10โˆ’140
pK140.01
2CH3COONH4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Gas + 3CCrystalline solidgraphite + 7H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
994.6799.24291โ€“
per 1 mol of
497.3399.62146โ€“
per 1 mol of
497.3399.62146โ€“
per 1 mol of
994.6799.24291โ€“
per 1 mol of
331.5266.41430โ€“
per 1 mol of
142.1114.2613.0โ€“

Changes in aqueous solution (3)

Decomposition of ammonium acetate
โ—†
ฮ”rG684.34 kJ/mol
K0.13 ร— 10โˆ’119
pK119.89
2CH3COONH4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Un-ionized aqueous solution + 3CCrystalline solidgraphite + 7H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
1003.74684.341071.1โ€“
per 1 mol of
501.870342.17535.55โ€“
per 1 mol of
501.870342.17535.55โ€“
per 1 mol of
1003.74684.341071.1โ€“
per 1 mol of
334.580228.11357.03โ€“
per 1 mol of
143.39197.763153.01โ€“

Changes in aqueous solution (4)

Decomposition of ammonium acetate
โ—†
ฮ”rG807.5 kJ/mol
K0.34 ร— 10โˆ’141
pK141.47
2CH3COONH4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2NOโ†‘Gas + CO2โ†‘Un-ionized aqueous solution + 3CCrystalline solidgraphite + 7H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
974.3807.54195โ€“
per 1 mol of
487.1403.82098โ€“
per 1 mol of
487.1403.82098โ€“
per 1 mol of
974.3807.54195โ€“
per 1 mol of
324.8269.21398โ€“
per 1 mol of
139.2115.4599.3โ€“

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
CH3COONH4 (cr)-616.14[1]โ€“โ€“โ€“
CH3COONH4 (ai)-618.52[1]-448.61[1]200.0[1]73.6[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
NO (g)90.25[1]86.55[1]210.761[1]29.844[1]
CO2 (g)-393.509[1]-394.359[1]213.74[1]37.11[1]
CO2 (ao)-413.80[1]-385.98[1]117.6[1]โ€“
C (cr)
graphite
0[1]0[1]5.740[1]8.527[1]
C (cr)
diamond
1.895[1]2.900[1]2.377[1]6.113[1]
C (g)716.682[1]671.257[1]158.096[1]20.838[1]
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]โ€“
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)