10Cu + Mg3(AsO4)2 🔥→ 5Cu2O + 2As + 3MgO
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- Reaction of and magnesium arsenate
The reaction of and magnesium arsenate yields copper(I) oxide, , and magnesium 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 and magnesium arsenate
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 and magnesium arsenate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 10 | Reducing | Oxidizable | ||
| Mg3(AsO4)2 | Magnesium arsenate | 1 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Cu2O | Copper(I) oxide | 5 | Oxidized | – |
| 2 | Reduced | – | ||
| MgO | Magnesium oxide | 3 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of and magnesium arsenate
- 10Crystalline solid + Mg3(AsO4)2Crystalline solid5Cu2OCrystalline solid + 2Crystalline solidα, gray, metallic + 3MgOCrystalline solid🔥⟶
| 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 | 455.9 | – | – | – |
| 45.59 | – | – | – | |
per 1 mol of | 455.9 | – | – | – |
per 1 mol of | 91.18 | – | – | – |
| 227.9 | – | – | – | |
per 1 mol of | 152.0 | – | – | – |
Changes in standard condition (2)
- Reaction of and magnesium arsenate
- 10Crystalline solid + Mg3(AsO4)2Crystalline solid5Cu2OCrystalline solid + 2Crystalline solidγ, yellow, cubic + 3MgOCrystalline solid🔥⟶
| 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 | 485.1 | – | – | – |
| 48.51 | – | – | – | |
per 1 mol of | 485.1 | – | – | – |
per 1 mol of | 97.02 | – | – | – |
| 242.6 | – | – | – | |
per 1 mol of | 161.7 | – | – | – |
Changes in standard condition (3)
- Reaction of and magnesium arsenate
- 10Crystalline solid + Mg3(AsO4)2Crystalline solid5Cu2OCrystalline solid + 2Amorphous solidβ + 3MgOCrystalline solid🔥⟶
| 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 | 464.3 | – | – | – |
| 46.43 | – | – | – | |
per 1 mol of | 464.3 | – | – | – |
per 1 mol of | 92.86 | – | – | – |
| 232.2 | – | – | – | |
per 1 mol of | 154.8 | – | – | – |
Changes in aqueous solution
- Reaction of and magnesium arsenate
- 10Crystalline solid + Mg3(AsO4)2Crystalline solid5Cu2OCrystalline solid + 2Crystalline solidα, gray, metallic + 3MgOCrystalline solid🔥⟶
| 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 | 455.9 | – | – | – |
| 45.59 | – | – | – | |
per 1 mol of | 455.9 | – | – | – |
per 1 mol of | 91.18 | – | – | – |
| 227.9 | – | – | – | |
per 1 mol of | 152.0 | – | – | – |
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 |
|---|---|---|---|---|
| (cr) | 0[1] | 0[1] | 33.150[1] | 24.435[1] |
| (g) | 338.32[1] | 298.58[1] | 166.38[1] | 20.786[1] |
| Mg3(AsO4)2 (cr) | -3092.8[1] | – | – | – |
* (cr):Crystalline solid, (g):Gas
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 |
|---|---|---|---|---|
| Cu2O (cr) | -168.6[1] | -146.0[1] | 93.14[1] | 63.64[1] |
| (cr) α, gray, metallic | 0[1] | 0[1] | 35.1[1] | 24.64[1] |
| (cr) γ, yellow, cubic | 14.6[1] | – | – | – |
| (am) β | 4.2[1] | – | – | – |
| (g) | 302.5[1] | 261.0[1] | 174.21[1] | 20.786[1] |
| MgO (cr) | -597.98[1] | -565.95[1] | 27.91[1] | 37.66[1] |
| MgO (g) | 17[1] | – | – | – |
* (cr):Crystalline solid, (am):Amorphous solid, (g):Gas
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°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 33.150 J · K−1 · mol−1
- ^ Cp°, 24.435 J · K−1 · mol−1
- ^ ΔfH°, 338.32 kJ · mol−1
- ^ ΔfG°, 298.58 kJ · mol−1
- ^ S°, 166.38 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, -3092.8 kJ · mol−1
- ^ ΔfH°, -168.6 kJ · mol−1
- ^ ΔfG°, -146.0 kJ · mol−1
- ^ S°, 93.14 J · K−1 · mol−1
- ^ Cp°, 63.64 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 35.1 J · K−1 · mol−1
- ^ Cp°, 24.64 J · K−1 · mol−1
- ^ ΔfH°, 14.6 kJ · mol−1
- ^ ΔfH°, 4.2 kJ · mol−1
- ^ ΔfH°, 302.5 kJ · mol−1
- ^ ΔfG°, 261.0 kJ · mol−1
- ^ S°, 174.21 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, -597.98 kJ · mol−1
- ^ ΔfG°, -565.95 kJ · mol−1
- ^ S°, 27.91 J · K−1 · mol−1
- ^ Cp°, 37.66 J · K−1 · mol−1
- ^ ΔfH°, 17. kJ · mol−1