3MgSO3 + 2KMnO4 → 2MgSO4 + MgO + K2SO4 + 2MnO2
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The reaction of magnesium sulfite and potassium permanganate yields magnesium sulfate, magnesium oxide, potassium sulfate, and manganese(IV) 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 magnesium sulfite and potassium permanganate
General equation
- Reaction of reducing species and oxidizing species
- Reducing speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of magnesium sulfite and potassium permanganate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgSO3 | Magnesium sulfite | 3 | Reducing | Reducing |
| KMnO4 | Potassium permanganate | 2 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgSO4 | Magnesium sulfate | 2 | Oxidized | – |
| MgO | Magnesium oxide | 1 | – | – |
| K2SO4 | Potassium sulfate | 1 | Oxidized | – |
| MnO2 | Manganese(IV) oxide | 2 | Reduced | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of magnesium sulfite and potassium permanganate◆
ΔrG −912.2 kJ/mol K 6.46 × 10159 pK −159.81
| 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 | −946.3 | −912.2 | −114.4 | – |
per 1 mol of | −315.4 | −304.1 | −38.13 | – |
per 1 mol of | −473.1 | −456.1 | −57.20 | – |
per 1 mol of | −473.1 | −456.1 | −57.20 | – |
per 1 mol of | −946.3 | −912.2 | −114.4 | – |
per 1 mol of | −946.3 | −912.2 | −114.4 | – |
per 1 mol of | −473.1 | −456.1 | −57.20 | – |
Changes in standard condition (2)
- Reaction of magnesium sulfite and potassium permanganate
| 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 | −911.3 | – | – | – |
per 1 mol of | −303.8 | – | – | – |
per 1 mol of | −455.6 | – | – | – |
per 1 mol of | −455.6 | – | – | – |
per 1 mol of | −911.3 | – | – | – |
per 1 mol of | −911.3 | – | – | – |
per 1 mol of | −455.6 | – | – | – |
Changes in aqueous solution (1)
- Reaction of magnesium sulfite and potassium permanganate◆
ΔrG −973.9 kJ/mol K 4.17 × 10170 pK −170.62
| 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 | −1191.8 | −973.9 | −728.0 | – |
per 1 mol of | −397.27 | −324.6 | −242.7 | – |
per 1 mol of | −595.90 | −486.9 | −364.0 | – |
per 1 mol of | −595.90 | −486.9 | −364.0 | – |
per 1 mol of | −1191.8 | −973.9 | −728.0 | – |
per 1 mol of | −1191.8 | −973.9 | −728.0 | – |
per 1 mol of | −595.90 | −486.9 | −364.0 | – |
Changes in aqueous solution (2)
- Reaction of magnesium sulfite and potassium permanganate◆
ΔrG −999.3 kJ/mol K 1.17 × 10175 pK −175.07
| 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 | −1151.6 | −999.3 | −506.2 | – |
per 1 mol of | −383.87 | −333.1 | −168.7 | – |
per 1 mol of | −575.80 | −499.6 | −253.1 | – |
per 1 mol of | −575.80 | −499.6 | −253.1 | – |
per 1 mol of | −1151.6 | −999.3 | −506.2 | – |
per 1 mol of | −1151.6 | −999.3 | −506.2 | – |
per 1 mol of | −575.80 | −499.6 | −253.1 | – |
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 |
|---|---|---|---|---|
| MgSO3 (cr) | -1008.3[1] | -923.8[1] | 87.9[1] | – |
| MgSO3 (cr) 3 hydrate | -1931.8[1] | -1674.7[1] | 209.2[1] | – |
| MgSO3 (cr) 6 hydrate | -2817.5[1] | -2385.4[1] | 322.2[1] | – |
| KMnO4 (cr) | -837.2[1] | -737.6[1] | 171.71[1] | 117.57[1] |
| KMnO4 (ai) | -793.8[1] | -730.5[1] | 293.7[1] | -60.2[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution
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 |
|---|---|---|---|---|
| MgSO4 (cr) | -1284.9[1] | -1170.6[1] | 91.6[1] | 96.48[1] |
| MgSO4 (ai) | -1376.12[1] | -1199.5[1] | -118.0[1] | – |
| MgSO4 (ao) | -1356.0[1] | -1212.21[1] | -7.1[1] | – |
| MgSO4 (cr) 1 hydrate | -1602.1[1] | -1428.7[1] | 126.4[1] | – |
| MgSO4 (am) 1 hydrate | -1574.9[1] | -1404.9[1] | 138.1[1] | – |
| MgSO4 (cr) 2 hydrate | -1896.2[1] | – | – | – |
| MgSO4 (cr) 4 hydrate | -2496.6[1] | – | – | – |
| MgSO4 (cr) 6 hydrate | -3087.0[1] | -2631.8[1] | 348.1[1] | 348.11[1] |
| MgSO4 (cr) 7 hydrate | -3388.71[1] | -2871.5[1] | 372[1] | – |
| MgO (cr) | -597.98[1] | -565.95[1] | 27.91[1] | 37.66[1] |
| MgO (g) | 17[1] | – | – | – |
| K2SO4 (cr) | -1437.79[1] | -1321.37[1] | 175.56[1] | 131.46[1] |
| K2SO4 (g) | -1096[1] | -1033[1] | 364[1] | 108.8[1] |
| K2SO4 (ai) | -1414.02[1] | -1311.07[1] | 225.1[1] | -251[1] |
| MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
| MnO2 (am) precipitated | -502.5[1] | – | – | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (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°, -1008.3 kJ · mol−1
- ^ ΔfG°, -923.8 kJ · mol−1
- ^ S°, 87.9 J · K−1 · mol−1
- ^ ΔfH°, -1931.8 kJ · mol−1
- ^ ΔfG°, -1674.7 kJ · mol−1
- ^ S°, 209.2 J · K−1 · mol−1
- ^ ΔfH°, -2817.5 kJ · mol−1
- ^ ΔfG°, -2385.4 kJ · mol−1
- ^ S°, 322.2 J · K−1 · mol−1
- ^ ΔfH°, -837.2 kJ · mol−1
- ^ ΔfG°, -737.6 kJ · mol−1
- ^ S°, 171.71 J · K−1 · mol−1
- ^ Cp°, 117.57 J · K−1 · mol−1
- ^ ΔfH°, -793.8 kJ · mol−1
- ^ ΔfG°, -730.5 kJ · mol−1
- ^ S°, 293.7 J · K−1 · mol−1
- ^ Cp°, -60.2 J · K−1 · mol−1
- ^ ΔfH°, -1284.9 kJ · mol−1
- ^ ΔfG°, -1170.6 kJ · mol−1
- ^ S°, 91.6 J · K−1 · mol−1
- ^ Cp°, 96.48 J · K−1 · mol−1
- ^ ΔfH°, -1376.12 kJ · mol−1
- ^ ΔfG°, -1199.5 kJ · mol−1
- ^ S°, -118.0 J · K−1 · mol−1
- ^ ΔfH°, -1356.0 kJ · mol−1
- ^ ΔfG°, -1212.21 kJ · mol−1
- ^ S°, -7.1 J · K−1 · mol−1
- ^ ΔfH°, -1602.1 kJ · mol−1
- ^ ΔfG°, -1428.7 kJ · mol−1
- ^ S°, 126.4 J · K−1 · mol−1
- ^ ΔfH°, -1574.9 kJ · mol−1
- ^ ΔfG°, -1404.9 kJ · mol−1
- ^ S°, 138.1 J · K−1 · mol−1
- ^ ΔfH°, -1896.2 kJ · mol−1
- ^ ΔfH°, -2496.6 kJ · mol−1
- ^ ΔfH°, -3087.0 kJ · mol−1
- ^ ΔfG°, -2631.8 kJ · mol−1
- ^ S°, 348.1 J · K−1 · mol−1
- ^ Cp°, 348.11 J · K−1 · mol−1
- ^ ΔfH°, -3388.71 kJ · mol−1
- ^ ΔfG°, -2871.5 kJ · mol−1
- ^ S°, 372. 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
- ^ ΔfH°, -1437.79 kJ · mol−1
- ^ ΔfG°, -1321.37 kJ · mol−1
- ^ S°, 175.56 J · K−1 · mol−1
- ^ Cp°, 131.46 J · K−1 · mol−1
- ^ ΔfH°, -1096. kJ · mol−1
- ^ ΔfG°, -1033. kJ · mol−1
- ^ S°, 364. J · K−1 · mol−1
- ^ Cp°, 108.8 J · K−1 · mol−1
- ^ ΔfH°, -1414.02 kJ · mol−1
- ^ ΔfG°, -1311.07 kJ · mol−1
- ^ S°, 225.1 J · K−1 · mol−1
- ^ Cp°, -251. 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