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3CuSO4 💧⚡→ 3Cu + 3S + 4O3

Electrolysis of aqueous copper(II) sulfate without water as reactant

Electrolysis of aqueous copper(II) sulfate yields copper, sulfur, and ozone (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

Electrolysis of aqueous copper(II) sulfate without water as reactant

General equation

Electrolysis of aqueous solution without water as reactant
Miscible with water/Very soluble in water/Soluble in waterSelf redox agent
💧⚡
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Electrolysis of aqueous copper(II) sulfate without water as reactant

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuSO4Copper(II) sulfate3
Self redox agent
Soluble in water

Products

Chemical formulaNameCoefficientTypeType in general
equation
CuCopper3
Reduced
SSulfur3
Reduced
O3Ozone4
Oxidized

Thermodynamic changes

Changes in standard condition (1)

Electrolysis of aqueous copper(II) sulfate without water as reactant
ΔrG2638.2 kJ/mol
K0.64 × 10−462
pK462.19
3CuSO4Crystalline solid
💧⚡
3CuCrystalline solid + 3SCrystalline solidrhombic + 4O3Gas
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
2884.92638.2824−2.0
per 1 mol of
961.63879.40275−0.67
per 1 mol of
961.63879.40275−0.67
per 1 mol of
961.63879.40275−0.67
per 1 mol of
721.23659.55206−0.50

Changes in standard condition (2)

Electrolysis of aqueous copper(II) sulfate without water as reactant
3CuSO4Crystalline solid
💧⚡
3CuCrystalline solid + 3SCrystalline solidmonoclinic + 4O3Gas
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
2885.9
per 1 mol of
961.97
per 1 mol of
961.97
per 1 mol of
961.97
per 1 mol of
721.48

Changes in aqueous solution (1)

Electrolysis of aqueous copper(II) sulfate without water as reactant
ΔrG2729.3 kJ/mol
K0.70 × 10−478
pK478.15
3CuSO4Un-ionized aqueous solution
💧⚡
3CuCrystalline solid + 3SCrystalline solidrhombic + 4O3Gas
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
2729.3
per 1 mol of
909.77
per 1 mol of
909.77
per 1 mol of
909.77
per 1 mol of
682.33

Changes in aqueous solution (2)

Electrolysis of aqueous copper(II) sulfate without water as reactant
ΔrG2772.9 kJ/mol
K0.16 × 10−485
pK485.79
3CuSO4Un-ionized aqueous solution
💧⚡
3CuCrystalline solid + 3SCrystalline solidrhombic + 4O3Un-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
2772.9
per 1 mol of
924.30
per 1 mol of
924.30
per 1 mol of
924.30
per 1 mol of
693.23

Changes in aqueous solution (3)

Electrolysis of aqueous copper(II) sulfate without water as reactant
ΔrG2638.2 kJ/mol
K0.64 × 10−462
pK462.19
3CuSO4Crystalline solid
💧⚡
3CuCrystalline solid + 3SCrystalline solidrhombic + 4O3Gas
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
2884.92638.2824−2.0
per 1 mol of
961.63879.40275−0.67
per 1 mol of
961.63879.40275−0.67
per 1 mol of
961.63879.40275−0.67
per 1 mol of
721.23659.55206−0.50

Changes in aqueous solution (4)

Electrolysis of aqueous copper(II) sulfate without water as reactant
ΔrG2681.8 kJ/mol
K0.15 × 10−469
pK469.83
3CuSO4Crystalline solid
💧⚡
3CuCrystalline solid + 3SCrystalline solidrhombic + 4O3Un-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
2817.72681.8452
per 1 mol of
939.23893.93151
per 1 mol of
939.23893.93151
per 1 mol of
939.23893.93151
per 1 mol of
704.42670.45113

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
CuSO4 (cr)-771.36[1]-661.8[1]109[1]100.0[1]
CuSO4 (ai)-844.50[1]-679.04[1]-79.5[1]
CuSO4 (ao)-692.18[1]
CuSO4 (cr)
1 hydrate
-1085.83[1]-918.11[1]146.0[1]134[1]
CuSO4 (cr)
3 hydrate
-1684.31[1]-1399.96[1]221.3[1]205[1]
CuSO4 (cr)
5 hydrate
-2279.65[1]-1879.745[1]300.4[1]280[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-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
Cu (cr)0[1]0[1]33.150[1]24.435[1]
Cu (g)338.32[1]298.58[1]166.38[1]20.786[1]
S (cr)
rhombic
0[1]0[1]31.80[1]22.64[1]
S (cr)
monoclinic
0.33[1]
S (g)278.805[1]238.250[1]167.821[1]23.673[1]
O3 (g)142.7[1]163.2[1]238.93[1]39.20[1]
O3 (ao)125.9[1]174.1[1]146[1]
* (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)