2CuCl + 2MnO2 🔥→ CuCl2 + CuO + Mn2O3
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The reaction of copper(I) chloride and manganese(IV) oxide yields copper(II) chloride, copper(II) oxide, and manganese(III) oxide (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of copper(I) chloride and manganese(IV) oxide
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(I) chloride and manganese(IV) oxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CuCl | Copper(I) chloride | 2 | Reducing | Oxidizable |
| MnO2 | Manganese(IV) oxide | 2 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CuCl2 | Copper(II) chloride | 1 | Oxidized | – |
| CuO | Copper(II) oxide | 1 | Oxidized | – |
| Mn2O3 | Manganese(III) oxide | 1 | Reduced | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of copper(I) chloride and manganese(IV) oxide◆
ΔrG −16.5 kJ/mol K 7.77 × 102 pK −2.89
| 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 | −21.9 | −16.5 | −17.3 | 16.6 |
per 1 mol of | −10.9 | −8.25 | −8.65 | 8.30 |
per 1 mol of | −10.9 | −8.25 | −8.65 | 8.30 |
per 1 mol of | −21.9 | −16.5 | −17.3 | 16.6 |
per 1 mol of | −21.9 | −16.5 | −17.3 | 16.6 |
per 1 mol of | −21.9 | −16.5 | −17.3 | 16.6 |
Changes in standard condition (2)
- Reaction of copper(I) chloride and manganese(IV) oxide
| 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 | −57.0 | – | – | – |
per 1 mol of | −28.5 | – | – | – |
per 1 mol of | −28.5 | – | – | – |
per 1 mol of | −57.0 | – | – | – |
per 1 mol of | −57.0 | – | – | – |
per 1 mol of | −57.0 | – | – | – |
Changes in aqueous solution
- Reaction of copper(I) chloride and manganese(IV) oxide◆
ΔrG −38.7 kJ/mol K 6.02 × 106 pK −6.78
| 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 | – | −38.7 | – | – |
per 1 mol of | – | −19.4 | – | – |
per 1 mol of | – | −19.4 | – | – |
per 1 mol of | – | −38.7 | – | – |
per 1 mol of | – | −38.7 | – | – |
per 1 mol of | – | −38.7 | – | – |
Thermodynamic data of reactants
| Chemical formula | Standard 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 |
|---|---|---|---|---|
| CuCl (cr) | -137.2[1] | -119.86[1] | 86.2[1] | 48.5[1] |
| MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
| MnO2 (am) precipitated | -502.5[1] | – | – | – |
* (cr):Crystalline solid, (am):Amorphous solid
Thermodynamic data of products
| Chemical formula | Standard 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 |
|---|---|---|---|---|
| CuCl2 (cr) | -220.1[1] | -175.7[1] | 108.07[1] | 71.88[1] |
| CuCl2 (ao) | – | -197.9[1] | – | – |
| CuCl2 (cr) 2 hydrate | -821.3[1] | -655.9[1] | 167[1] | – |
| CuO (cr) | -157.3[1] | -129.7[1] | 42.63[1] | 42.30[1] |
| Mn2O3 (cr) | -959.0[1] | -881.1[1] | 110.5[1] | 107.65[1] |
* (cr):Crystalline solid, (ao):Un-ionized aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, -137.2 kJ · mol−1
- ^ ΔfG°, -119.86 kJ · mol−1
- ^ S°, 86.2 J · K−1 · mol−1
- ^ Cp°, 48.5 J · K−1 · mol−1
- ^ ΔfH°, -520.03 kJ · mol−1
- ^ ΔfG°, -465.14 kJ · mol−1
- ^ S°, 53.05 J · K−1 · mol−1
- ^ Cp°, 54.14 J · K−1 · mol−1
- ^ ΔfH°, -502.5 kJ · mol−1
- ^ ΔfH°, -220.1 kJ · mol−1
- ^ ΔfG°, -175.7 kJ · mol−1
- ^ S°, 108.07 J · K−1 · mol−1
- ^ Cp°, 71.88 J · K−1 · mol−1
- ^ ΔfG°, -197.9 kJ · mol−1
- ^ ΔfH°, -821.3 kJ · mol−1
- ^ ΔfG°, -655.9 kJ · mol−1
- ^ S°, 167. J · K−1 · mol−1
- ^ ΔfH°, -157.3 kJ · mol−1
- ^ ΔfG°, -129.7 kJ · mol−1
- ^ S°, 42.63 J · K−1 · mol−1
- ^ Cp°, 42.30 J · K−1 · mol−1
- ^ ΔfH°, -959.0 kJ · mol−1
- ^ ΔfG°, -881.1 kJ · mol−1
- ^ S°, 110.5 J · K−1 · mol−1
- ^ Cp°, 107.65 J · K−1 · mol−1