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2Mn(CH3COO)2 ๐Ÿ”ฅโ†’ 2MnO + 3O2โ†‘ + 8C + 6H2โ†‘

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Decomposition of manganese(II) acetate
2Mn(CH3COO)2Manganese(II) acetate
๐Ÿ”ฅ
โŸถ
2MnOManganese(II) oxide + 3O2โ†‘Oxygen + 8CCarbon + 6H2โ†‘Hydrogen

Decomposition of manganese(II) acetate yields manganese(II) oxide, oxygen, 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 manganese(II) acetate
2Mn(CH3COO)2Manganese(II) acetate
๐Ÿ”ฅ
โŸถ
2MnOManganese(II) oxide + 3O2โ†‘Oxygen + 8CCarbon + 6H2โ†‘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 manganese(II) acetate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Mn(CH3COO)2Manganese(II) acetate2
Self redox agent
Thermally decomposable
Oxoacid salt

Products

Chemical formulaNameCoefficientTypeType in general
equation
MnOManganese(II) oxide2
โ€“
โ€“
O2Oxygen3
Oxidized
โ€“
CCarbon8
Redoxed product
โ€“
H2Hydrogen6
Reduced
โ€“

Thermodynamic changes

Changes in standard condition (1)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Crystalline solid
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Gas + 8CCrystalline solidgraphite + 6H2โ†‘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
1525.8โ€“โ€“โ€“
762.90โ€“โ€“โ€“
762.90โ€“โ€“โ€“
per 1 mol of
508.60โ€“โ€“โ€“
per 1 mol of
190.72โ€“โ€“โ€“
per 1 mol of
254.30โ€“โ€“โ€“

Changes in standard condition (2)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Crystalline solid
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Gas + 8CCrystalline soliddiamond + 6H2โ†‘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
1540.9โ€“โ€“โ€“
770.45โ€“โ€“โ€“
770.45โ€“โ€“โ€“
per 1 mol of
513.63โ€“โ€“โ€“
per 1 mol of
192.61โ€“โ€“โ€“
per 1 mol of
256.82โ€“โ€“โ€“

Changes in aqueous solution (1)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Aqueous solution
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Gas + 8CCrystalline solidgraphite + 6H2โ†‘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
1627.8โ€“โ€“โ€“
813.90โ€“โ€“โ€“
813.90โ€“โ€“โ€“
per 1 mol of
542.60โ€“โ€“โ€“
per 1 mol of
203.47โ€“โ€“โ€“
per 1 mol of
271.30โ€“โ€“โ€“

Changes in aqueous solution (2)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Aqueous solution
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Gas + 8CCrystalline solidgraphite + 6H2โ†‘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
1602.6โ€“โ€“โ€“
801.30โ€“โ€“โ€“
801.30โ€“โ€“โ€“
per 1 mol of
534.20โ€“โ€“โ€“
per 1 mol of
200.32โ€“โ€“โ€“
per 1 mol of
267.10โ€“โ€“โ€“

Changes in aqueous solution (3)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Aqueous solution
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Un-ionized aqueous solution + 8CCrystalline solidgraphite + 6H2โ†‘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
1592.7โ€“โ€“โ€“
796.35โ€“โ€“โ€“
796.35โ€“โ€“โ€“
per 1 mol of
530.90โ€“โ€“โ€“
per 1 mol of
199.09โ€“โ€“โ€“
per 1 mol of
265.45โ€“โ€“โ€“

Changes in aqueous solution (4)

Decomposition of manganese(II) acetate
2Mn(CH3COO)2Aqueous solution
๐Ÿ”ฅ
โŸถ
2MnOCrystalline solid + 3O2โ†‘Un-ionized aqueous solution + 8CCrystalline solidgraphite + 6H2โ†‘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
1567.5โ€“โ€“โ€“
783.75โ€“โ€“โ€“
783.75โ€“โ€“โ€“
per 1 mol of
522.50โ€“โ€“โ€“
per 1 mol of
195.94โ€“โ€“โ€“
per 1 mol of
261.25โ€“โ€“โ€“

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
Mn(CH3COO)2 (cr)-1148.1[1]โ€“โ€“โ€“
Mn(CH3COO)2 (aq)-1199.1[1]โ€“โ€“โ€“
Mn(CH3COO)2 (cr)
4 hydrate
-2338.0[1]โ€“โ€“โ€“
* (cr):Crystalline solid, (aq):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
MnO (cr)-385.22[1]-362.90[1]59.71[1]45.44[1]
MnO (g)124.22[1]โ€“โ€“โ€“
O2 (g)0[1]0[1]205.138[1]29.355[1]
O2 (ao)-11.7[1]16.4[1]110.9[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€“
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution

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)