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3Cu + CuSO4 🔥→ 4CuO + S

The reaction of copper and copper(II) sulfate yields copper(II) oxide and sulfur (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 oxidizable species and reducible species
Oxidizable speciesReducing agent + Reducible speciesOxidizing agent
🔥
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of copper and copper(II) sulfate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuCopper3
Reducing
Oxidizable
CuSO4Copper(II) sulfate1
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
CuOCopper(II) oxide4
Oxidized
SSulfur1
Reduced

Thermodynamic changes

Changes in standard condition (1)

Reaction of copper and copper(II) sulfate
ΔrG143.0 kJ/mol
K0.89 × 10−25
pK25.05
3CuCrystalline solid + CuSO4Crystalline solid
🔥
4CuOCrystalline solid + SCrystalline solidrhombic
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
142.2143.0−618.5
per 1 mol of
47.4047.67−26.17
per 1 mol of
142.2143.0−618.5
per 1 mol of
35.5535.75−24.63
per 1 mol of
142.2143.0−618.5

Changes in standard condition (2)

Reaction of copper and copper(II) sulfate
3CuCrystalline solid + CuSO4Crystalline solid
🔥
4CuOCrystalline solid + SCrystalline solidmonoclinic
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
142.5
per 1 mol of
47.50
per 1 mol of
142.5
per 1 mol of
35.63
per 1 mol of
142.5

Changes in aqueous solution (1)

Reaction of copper and copper(II) sulfate
ΔrG173.4 kJ/mol
K0.42 × 10−30
pK30.38
3CuCrystalline solid + CuSO4Un-ionized aqueous solution
🔥
4CuOCrystalline solid + SCrystalline solidrhombic
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
173.4
per 1 mol of
57.80
per 1 mol of
173.4
per 1 mol of
43.35
per 1 mol of
173.4

Changes in aqueous solution (2)

Reaction of copper and copper(II) sulfate
ΔrG143.0 kJ/mol
K0.89 × 10−25
pK25.05
3CuCrystalline solid + CuSO4Crystalline solid
🔥
4CuOCrystalline solid + SCrystalline solidrhombic
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
142.2143.0−618.5
per 1 mol of
47.4047.67−26.17
per 1 mol of
142.2143.0−618.5
per 1 mol of
35.5535.75−24.63
per 1 mol of
142.2143.0−618.5

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
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]
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, (g):Gas, (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
CuO (cr)-157.3[1]-129.7[1]42.63[1]42.30[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]
* (cr):Crystalline solid, (g):Gas

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)