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3BaS2O3 ๐Ÿ”ฅโ†’ 3BaO + 6S + 2O3โ†‘

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Decomposition of barium thiosulfate
3BaS2O3Barium thiosulfate
๐Ÿ”ฅ
โŸถ
3BaOBarium oxide + 6SSulfur + 2O3โ†‘Ozone

Decomposition of barium thiosulfate yields barium oxide, sulfur, and ozone (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 barium thiosulfate
3BaS2O3Barium thiosulfate
๐Ÿ”ฅ
โŸถ
3BaOBarium oxide + 6SSulfur + 2O3โ†‘Ozone

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 barium thiosulfate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
BaS2O3Barium thiosulfate3
Reducing
Thermally decomposable
Oxoacid salt

Products

Chemical formulaNameCoefficientTypeType in general
equation
BaOBarium oxide3
โ€“
โ€“
SSulfur6
Redoxed product
โ€“
O3Ozone2
Oxidized
โ€“

Thermodynamic changes

Changes in standard condition (1)

Decomposition of barium thiosulfate
3BaS2O3Crystalline solid
๐Ÿ”ฅ
โŸถ
3BaOCrystalline solid + 6SCrystalline solidrhombic + 2O3โ†‘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
โ€“โ€“โ€“โˆ’153.3
per 1 mol of
โ€“โ€“โ€“โˆ’51.10
per 1 mol of
โ€“โ€“โ€“โˆ’51.10
per 1 mol of
โ€“โ€“โ€“โˆ’25.55
per 1 mol of
โ€“โ€“โ€“โˆ’76.65

Changes in standard condition (2)

Decomposition of barium thiosulfate
3BaS2O3Crystalline solid
๐Ÿ”ฅ
โŸถ
3BaOCrystalline solid + 6SCrystalline solidmonoclinic + 2O3โ†‘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
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“

Changes in aqueous solution (1)

Decomposition of barium thiosulfate
3BaS2O3Crystalline solid
๐Ÿ”ฅ
โŸถ
3BaOCrystalline solid + 6SCrystalline solidrhombic + 2O3โ†‘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
โ€“โ€“โ€“โˆ’153.3
per 1 mol of
โ€“โ€“โ€“โˆ’51.10
per 1 mol of
โ€“โ€“โ€“โˆ’51.10
per 1 mol of
โ€“โ€“โ€“โˆ’25.55
per 1 mol of
โ€“โ€“โ€“โˆ’76.65

Changes in aqueous solution (2)

Decomposition of barium thiosulfate
3BaS2O3Crystalline solid
๐Ÿ”ฅ
โŸถ
3BaOCrystalline solid + 6SCrystalline solidrhombic + 2O3โ†‘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
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“โ€“โ€“
per 1 mol of
โ€“โ€“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
BaS2O3 (cr)โ€“โ€“โ€“170.3[1]
* (cr):Crystalline solid

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
BaO (cr)-553.5[1]-525.1[1]70.42[1]47.78[1]
BaO (g)-117[1]โ€“โ€“33.1[1]
S (cr)
rhombic
0[1]0[1]31.80[1]22.64[1]
S (cr)
monoclinic
0.33[1]โ€“โ€“โ€“
S (g)278.805[1]238.250[1]167.821[1]23.673[1]
O3 (g)142.7[1]163.2[1]238.93[1]39.20[1]
O3 (ao)125.9[1]174.1[1]146[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)