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2BaCl2 + 2KMnO4 + H2O 🔥→ 2BaMnO4 + HClO + 2KCl + HCl↑

The reaction of barium chloride, potassium permanganate, and water yields barium manganate, hypochlorous acid, potassium chloride, and hydrogen chloride (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

Reaction of hardly oxidizable species and oxidizing species under neutral condition
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H2ONon-redox agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of barium chloride and potassium permanganate under neutral condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
BaCl2Barium chloride2
Reducing
Hardly oxidizable
KMnO4Potassium permanganate2
Oxidizing
Oxidizing
H2OWater1
Water

Products

Chemical formulaNameCoefficientTypeType in general
equation
BaMnO4Barium manganate2
Reduced
HClOHypochlorous acid1
Oxidized
KClPotassium chloride2
HClHydrogen chloride1

Thermodynamic changes

Changes in standard condition (1)

Reaction of barium chloride and potassium permanganate under neutral condition
ΔrG102.0 kJ/mol
K0.14 × 10−17
pK17.87
2BaCl2Ionized aqueous solution + 2KMnO4Ionized aqueous solution + H2OLiquid
🔥
2BaMnO4Crystalline solid + HClOUn-ionized aqueous solution + 2KClIonized aqueous solution + HClGas
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
102.0
per 1 mol of
51.00
51.00
per 1 mol of
102.0
per 1 mol of
51.00
per 1 mol of
102.0
per 1 mol of
51.00
per 1 mol of
102.0

Changes in standard condition (2)

Reaction of barium chloride and potassium permanganate under neutral condition
ΔrG66.0 kJ/mol
K0.27 × 10−11
pK11.56
2BaCl2Ionized aqueous solution + 2KMnO4Ionized aqueous solution + H2OLiquid
🔥
2BaMnO4Crystalline solid + HClOUn-ionized aqueous solution + 2KClIonized aqueous solution + HClIonized 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
66.0
per 1 mol of
33.0
33.0
per 1 mol of
66.0
per 1 mol of
33.0
per 1 mol of
66.0
per 1 mol of
33.0
per 1 mol of
66.0

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
BaCl2 (cr)-858.6[1]-810.4[1]123.68[1]75.14[1]
BaCl2 (g)-525.9[1]-537.6[1]325.29[1]56.19[1]
BaCl2 (ai)-871.95[1]-823.21[1]122.6[1]
BaCl2 (cr)
1 hydrate
-1160.6[1]-1055.63[1]166.9[1]
BaCl2 (cr)
2 hydrate
-1460.13[1]-1296.32[1]202.9[1]161.96[1]
KMnO4 (cr)-837.2[1]-737.6[1]171.71[1]117.57[1]
KMnO4 (ai)-793.8[1]-730.5[1]293.7[1]-60.2[1]
H2O (cr)
H2O (l)-285.830[1]-237.129[1]69.91[1]75.291[1]
H2O (g)-241.818[1]-228.572[1]188.825[1]33.577[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid

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
BaMnO4 (cr)-1119.2[1]
HClO (g)-78.7[1]-66.1[1]236.67[1]37.15[1]
HClO (ao)-120.9[1]-79.9[1]142[1]
KCl (cr)-436.747[1]-409.14[1]82.59[1]51.30[1]
KCl (g)-214.14[1]-233.0[1]239.10[1]36.48[1]
KCl (ai)-419.53[1]-414.49[1]159.0[1]-114.6[1]
HCl (g)-92.307[1]-95.299[1]186.908[1]29.12[1]
HCl (ai)-167.159[1]-131.228[1]56.5[1]-136.4[1]
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution, (ai):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)