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18NaH + 4KMnO4 → 9Na2O + 4Mn + 4KH + 7H2O

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Reaction of sodium hydride and potassium permanganate
18NaHSodium hydride + 4KMnO4Potassium permanganate
⟶
9Na2OSodium oxide + 4MnManganese + 4KHPotassium hydride + 7H2OWater

The reaction of sodium hydride and potassium permanganate yields sodium oxide, manganese, potassium hydride, and water (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

Reaction of sodium hydride and potassium permanganate
18NaHSodium hydride + 4KMnO4Potassium permanganate
⟶
9Na2OSodium oxide + 4MnManganese + 4KHPotassium hydride + 7H2OWater

General equation

Reaction of reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
⟶
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of sodium hydride and potassium permanganate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NaHSodium hydride18
Reducing
Reducing
KMnO4Potassium permanganate4
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Na2OSodium oxide9
–
–
MnManganese4
Reduced
–
KHPotassium hydride4
–
–
H2OWater7
Oxidized
–

Thermodynamic changes

Changes in standard condition (1)

Reaction of sodium hydride and potassium permanganate
18NaHCrystalline solid + 4KMnO4Crystalline solid
⟶
9Na2OCrystalline solid + 4MnCrystalline solidα + 4KHCrystalline solid + 7H2OLiquid
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
−1598.0–––
per 1 mol of
−88.778–––
−399.50–––
per 1 mol of
−177.56–––
per 1 mol of
−399.50–––
per 1 mol of
−399.50–––
per 1 mol of
−228.29–––

Changes in standard condition (2)

Reaction of sodium hydride and potassium permanganate
18NaHCrystalline solid + 4KMnO4Crystalline solid
⟶
9Na2OCrystalline solid + 4MnCrystalline solidβ + 4KHCrystalline solid + 7H2OLiquid
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
––––
per 1 mol of
––––
––––
per 1 mol of
––––
per 1 mol of
––––
per 1 mol of
––––
per 1 mol of
––––

Changes in standard condition (3)

Reaction of sodium hydride and potassium permanganate
18NaHCrystalline solid + 4KMnO4Crystalline solid
⟶
9Na2OCrystalline solid + 4MnCrystalline solidγ + 4KHCrystalline solid + 7H2OLiquid
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
−1591.8–––
per 1 mol of
−88.433–––
−397.95–––
per 1 mol of
−176.87–––
per 1 mol of
−397.95–––
per 1 mol of
−397.95–––
per 1 mol of
−227.40–––

Changes in aqueous solution

Reaction of sodium hydride and potassium permanganate
18NaHCrystalline solid + 4KMnO4Ionized aqueous solution
⟶
9Na2OCrystalline solid + 4MnCrystalline solidα + 4KHCrystalline solid + 7H2OLiquid
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
−1771.6–––
per 1 mol of
−98.422–––
−442.90–––
per 1 mol of
−196.84–––
per 1 mol of
−442.90–––
per 1 mol of
−442.90–––
per 1 mol of
−253.09–––

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
NaH (cr)-56.275[1]-33.46[1]40.016[1]36.401[1]
NaH (g)130.25[1]108.85[1]188.377[1]30.29[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]
* (cr):Crystalline solid, (g):Gas, (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
Na2O (cr)-414.22[1]-375.46[1]75.06[1]69.12[1]
Na2O (g)-35.6[1]-52.3[1]261.2[1]55.2[1]
Mn (cr)
α
0[1]0[1]32.01[1]26.32[1]
Mn (cr)
β
––34.39[1]26.53[1]
Mn (cr)
γ
1.55[1]1.42[1]32.43[1]27.57[1]
Mn (g)280.7[1]238.5[1]173.70[1]20.79[1]
KH (cr)-57.74[1]–––
KH (g)130[1]113[1]192.41[1]31.049[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, (l):Liquid

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)