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2NH4ClO3 🔥|️☀️→ 2NO↑ + 2HClO2 + 3H2

Decomposition of ammonium chlorate yields nitrogen monoxide, chlorous acid, 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

General equation

Thermal decomposition with redox
Thermally decomposable substanceSelf redox agent
🔥
ProductOxidation product + ProductReduction product
Thermal decomposition of oxoacid salt with redox
Oxoacid saltSelf redox agent
🔥
ProductOxidation product + ProductReduction product
Photolytic decomposition with redox
Photolytically decomposable substanceSelf redox agent
️☀️
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Decomposition of ammonium chlorate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NH4ClO3Ammonium chlorate2
Self redox agent
Thermally decomposable
Oxoacid salt
Photolytically decomposable

Products

Chemical formulaNameCoefficientTypeType in general
equation
NONitrogen monoxide2
Oxidized
HClO2Chlorous acid2
Reduced
H2Hydrogen3
Reduced

Thermodynamic changes

Changes in aqueous solution (1)

Decomposition of ammonium chlorate
ΔrG359.4 kJ/mol
K0.11 × 10−62
pK62.96
2NH4ClO3Ionized aqueous solution
🔥|️☀️
2NOGas + 2HClO2Un-ionized aqueous solution + 3H2Gas
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
549.7359.4638.8
per 1 mol of
274.9179.7319.4
per 1 mol of
274.9179.7319.4
per 1 mol of
274.9179.7319.4
per 1 mol of
183.2119.8212.9

Changes in aqueous solution (2)

Decomposition of ammonium chlorate
ΔrG412.2 kJ/mol
K0.61 × 10−72
pK72.21
2NH4ClO3Ionized aqueous solution
🔥|️☀️
2NOGas + 2HClO2Un-ionized aqueous solution + 3H2Un-ionized aqueous solution
Standard enthalpy
of reaction
ΔrH°
kJ · mol−1
Standard
Gibbs energy
of reaction
ΔrG°
kJ · mol−1
Standard entropy
of reaction
ΔrS°
J · K−1 · mol−1
Standard heat
capacity of reaction
at constant pressure
ΔrCp°
J · K−1 · mol−1
per 1 mol of
Equation
537.1412.21978
per 1 mol of
268.6206.1989.0
per 1 mol of
268.6206.1989.0
per 1 mol of
268.6206.1989.0
per 1 mol of
179.0137.4659.3

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
NH4ClO3 (ai)-236.48[1]-87.26[1]275.7[1]
* (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ΔfH°
kJ · mol−1
Standard Gibbs
energy of
formation
ΔfG°
kJ · mol−1
Standard
molar entropy
S°
J · K−1 · mol−1
Standard molar
heat capacity at
constant pressure
Cp°
J · K−1 · mol−1
NO (g)90.25[1]86.55[1]210.761[1]29.844[1]
HClO2 (ao)-51.9[1]5.9[1]188.3[1]
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]
* (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1