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2Cs2O → 4Cs+ + O2↑ + 4e−

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Oxidation of caesium oxide
2Cs2OCaesium oxide
⟶
4Cs+Caesium ion + O2↑Oxygen + 4e−Electron

Oxidation of caesium oxide yields caesium ion, oxygen (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

Oxidation of caesium oxide
2Cs2OCaesium oxide
⟶
4Cs+Caesium ion + O2↑Oxygen + 4e−Electron

General equation

Oxidation of oxidizable species
ReactantReducing agent
⟶
ProductOxidation product + e−

Oxidation state of each atom

Oxidation of caesium oxide

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Cs2OCaesium oxide2
Reducing
–

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cs+Caesium ion4
–
–
O2Oxygen1
Oxidized
–
e−Electron4
–
Electron

Thermodynamic changes

Changes in standard condition (1)

Oxidation of caesium oxide
◆
ΔrG−551.80 kJ/mol
K4.69 × 1096
pK−96.67
2Cs2OCrystalline solid
⟶
4Cs+Un-ionized aqueous solution + O2↑Gas + 4e−
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
−341.58−551.80443.62−164.6
per 1 mol of
−170.79−275.90221.81−82.30
per 1 mol of
Caesium ion
−85.395−137.95110.91−41.15
per 1 mol of
−341.58−551.80443.62−164.6
per 1 mol of
Electron
−85.395−137.95110.91−41.15

Changes in standard condition (2)

Oxidation of caesium oxide
◆
ΔrG−535.4 kJ/mol
K6.28 × 1093
pK−93.80
2Cs2OCrystalline solid
⟶
4Cs+Un-ionized aqueous solution + O2↑Un-ionized aqueous solution + 4e−
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
−353.3−535.4349.4–
per 1 mol of
−176.7−267.7174.7–
per 1 mol of
Caesium ion
−88.33−133.887.35–
per 1 mol of
−353.3−535.4349.4–
per 1 mol of
Electron
−88.33−133.887.35–

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
Cs2O (cr)-345.77[1]-308.14[1]146.86[1]75.98[1]
* (cr):Crystalline solid

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
Cs+ (g)457.964[1]–––
Cs+ (ao)-258.28[1]-292.02[1]133.05[1]-10.5[1]
O2 (g)0[1]0[1]205.138[1]29.355[1]
O2 (ao)-11.7[1]16.4[1]110.9[1]–
e−––––
* (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)