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4FeO + Cd(OH)2 ๐Ÿ”ฅโ†’ 2Fe2O3 + Cd + H2โ†‘

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Reaction of iron(II) oxide and cadmium hydroxide
4FeOIron(II) oxide + Cd(OH)2Cadmium hydroxide
๐Ÿ”ฅ
โŸถ
2Fe2O3Iron(III) oxide + CdCadmium + H2โ†‘Hydrogen

The reaction of iron(II) oxide and cadmium hydroxide yields iron(III) oxide, cadmium, 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

Reaction of iron(II) oxide and cadmium hydroxide
4FeOIron(II) oxide + Cd(OH)2Cadmium hydroxide
๐Ÿ”ฅ
โŸถ
2Fe2O3Iron(III) oxide + CdCadmium + H2โ†‘Hydrogen

General equation

Reaction of oxidizable species and reducible species
Oxidizable speciesReducing agent + Reducible speciesOxidizing agent
๐Ÿ”ฅ
โŸถ
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of iron(II) oxide and cadmium hydroxide

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
FeOIron(II) oxide4
Reducing
Oxidizable
Cd(OH)2Cadmium hydroxide1
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
Fe2O3Iron(III) oxide2
Oxidized
โ€“
CdCadmium1
Reduced
โ€“
H2Hydrogen1
Reduced
โ€“

Thermodynamic changes

Changes in standard condition (1)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Crystalline solidprecipitated
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮณ + H2โ†‘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
0.3โ€“โ€“โ€“
per 1 mol of
0.075โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“
per 1 mol of
0.15โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“

Changes in standard condition (2)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Crystalline solidprecipitated
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮฑ + H2โ†‘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
โˆ’0.3โ€“โ€“โ€“
per 1 mol of
โˆ’0.075โ€“โ€“โ€“
per 1 mol of
โˆ’0.30โ€“โ€“โ€“
per 1 mol of
โˆ’0.15โ€“โ€“โ€“
per 1 mol of
โˆ’0.30โ€“โ€“โ€“
per 1 mol of
โˆ’0.30โ€“โ€“โ€“

Changes in aqueous solution (1)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮณ + H2โ†‘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€“
per 1 mol of
โ€“โ€“โ€“โ€“

Changes in aqueous solution (2)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮณ + H2โ†‘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€“
per 1 mol of
โ€“โ€“โ€“โ€“

Changes in aqueous solution (3)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Crystalline solidprecipitated
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮณ + H2โ†‘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
0.3โ€“โ€“โ€“
per 1 mol of
0.075โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“
per 1 mol of
0.15โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“
per 1 mol of
0.30โ€“โ€“โ€“

Changes in aqueous solution (4)

Reaction of iron(II) oxide and cadmium hydroxide
4FeOCrystalline solid + Cd(OH)2Crystalline solidprecipitated
๐Ÿ”ฅ
โŸถ
2Fe2O3Crystalline solid + CdCrystalline solidฮณ + H2โ†‘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
โˆ’3.9โ€“โ€“โ€“
per 1 mol of
โˆ’0.97โ€“โ€“โ€“
per 1 mol of
โˆ’3.9โ€“โ€“โ€“
per 1 mol of
โˆ’1.9โ€“โ€“โ€“
per 1 mol of
โˆ’3.9โ€“โ€“โ€“
per 1 mol of
โˆ’3.9โ€“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
FeO (cr)-272.0[1]โ€“โ€“โ€“
Cd(OH)2 (cr)
precipitated
-560.7[1]-473.6[1]96[1]โ€“
Cd(OH)2 (ai)-535.89[1]-392.10[1]-94.6[1]โ€“
Cd(OH)2 (ao)โ€“-442.6[1]โ€“โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized 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
Fe2O3 (cr)-824.2[1]-742.2[1]87.40[1]103.85[1]
Cd (cr)
ฮณ
0[1]0[1]51.76[1]25.98[1]
Cd (cr)
ฮฑ
-0.59[1]-0.59[1]51.76[1]โ€“
Cd (g)112.01[1]77.41[1]167.746[1]20.786[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)