3CaCl2 + 6KMnO4 🔥→ 3CaO + 4KClO3 + 3Mn2O3 + 2KCl
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The reaction of calcium chloride and potassium permanganate yields calcium oxide, potassium chlorate, manganese(III) oxide, and potassium chloride (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 calcium chloride and potassium permanganate
General equation
- Reaction of hardly oxidizable species and oxidizing species
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of calcium chloride and potassium permanganate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CaCl2 | Calcium chloride | 3 | Reducing | Hardly oxidizable |
| KMnO4 | Potassium permanganate | 6 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CaO | Calcium oxide | 3 | – | – |
| KClO3 | Potassium chlorate | 4 | Oxidized | – |
| Mn2O3 | Manganese(III) oxide | 3 | Reduced | – |
| KCl | Potassium chloride | 2 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of calcium chloride and potassium permanganate◆
ΔrG 211.2 kJ/mol K 1.00 × 10−37 pK 37.00
| 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 | 163.9 | 211.2 | −155.7 | 31.76 |
per 1 mol of | 54.63 | 70.40 | −51.90 | 10.59 |
per 1 mol of | 27.32 | 35.20 | −25.95 | 5.293 |
per 1 mol of | 54.63 | 70.40 | −51.90 | 10.59 |
per 1 mol of | 40.98 | 52.80 | −38.92 | 7.940 |
per 1 mol of | 54.63 | 70.40 | −51.90 | 10.59 |
per 1 mol of | 81.95 | 105.6 | −77.85 | 15.88 |
Changes in aqueous solution
- Reaction of calcium chloride and potassium permanganate◆
ΔrG 381.8 kJ/mol K 0.13 × 10−66 pK 66.89
| 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 | 347.5 | 381.8 | −113.7 | – |
per 1 mol of | 115.8 | 127.3 | −37.90 | – |
per 1 mol of | 57.92 | 63.63 | −18.95 | – |
per 1 mol of | 115.8 | 127.3 | −37.90 | – |
per 1 mol of | 86.88 | 95.45 | −28.43 | – |
per 1 mol of | 115.8 | 127.3 | −37.90 | – |
per 1 mol of | 173.8 | 190.9 | −56.85 | – |
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 |
|---|---|---|---|---|
| CaCl2 (cr) | -795.8[1] | -748.1[1] | 104.6[1] | 72.59[1] |
| CaCl2 (g) | -471.5[1] | -479.24[1] | 290.27[1] | 59.33[1] |
| CaCl2 (ai) | -877.13[1] | -816.01[1] | 59.8[1] | – |
| CaCl2 (cr) 1 hydrate | -1109.2[1] | – | – | – |
| CaCl2 (cr) 2 hydrate | -1402.9[1] | – | – | – |
| CaCl2 (cr) 4 hydrate | -2009.6[1] | – | – | – |
| CaCl2 (cr) 6 hydrate | -2607.9[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, (g):Gas, (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 |
|---|---|---|---|---|
| CaO (cr) | -635.09[1] | -604.03[1] | 39.75[1] | 42.80[1] |
| CaO (g) | – | – | – | – |
| KClO3 (cr) | -397.73[1] | -296.25[1] | 143.1[1] | 100.25[1] |
| KClO3 (ai) | -356.35[1] | -291.22[1] | 264.8[1] | – |
| Mn2O3 (cr) | -959.0[1] | -881.1[1] | 110.5[1] | 107.65[1] |
| KCl (cr) | -436.747[1] | -409.14[1] | 82.59[1] | 51.30[1] |
| KCl (g) | -214.14[1] | -233.0[1] | 239.10[1] | 36.48[1] |
| KCl (ai) | -419.53[1] | -414.49[1] | 159.0[1] | -114.6[1] |
* (cr):Crystalline solid, (g):Gas, (ai):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°, -795.8 kJ · mol−1
- ^ ΔfG°, -748.1 kJ · mol−1
- ^ S°, 104.6 J · K−1 · mol−1
- ^ Cp°, 72.59 J · K−1 · mol−1
- ^ ΔfH°, -471.5 kJ · mol−1
- ^ ΔfG°, -479.24 kJ · mol−1
- ^ S°, 290.27 J · K−1 · mol−1
- ^ Cp°, 59.33 J · K−1 · mol−1
- ^ ΔfH°, -877.13 kJ · mol−1
- ^ ΔfG°, -816.01 kJ · mol−1
- ^ S°, 59.8 J · K−1 · mol−1
- ^ ΔfH°, -1109.2 kJ · mol−1
- ^ ΔfH°, -1402.9 kJ · mol−1
- ^ ΔfH°, -2009.6 kJ · mol−1
- ^ ΔfH°, -2607.9 kJ · 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°, -635.09 kJ · mol−1
- ^ ΔfG°, -604.03 kJ · mol−1
- ^ S°, 39.75 J · K−1 · mol−1
- ^ Cp°, 42.80 J · K−1 · mol−1
- ^ ΔfH°, -397.73 kJ · mol−1
- ^ ΔfG°, -296.25 kJ · mol−1
- ^ S°, 143.1 J · K−1 · mol−1
- ^ Cp°, 100.25 J · K−1 · mol−1
- ^ ΔfH°, -356.35 kJ · mol−1
- ^ ΔfG°, -291.22 kJ · mol−1
- ^ S°, 264.8 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
- ^ ΔfH°, -436.747 kJ · mol−1
- ^ ΔfG°, -409.14 kJ · mol−1
- ^ S°, 82.59 J · K−1 · mol−1
- ^ Cp°, 51.30 J · K−1 · mol−1
- ^ ΔfH°, -214.14 kJ · mol−1
- ^ ΔfG°, -233.0 kJ · mol−1
- ^ S°, 239.10 J · K−1 · mol−1
- ^ Cp°, 36.48 J · K−1 · mol−1
- ^ ΔfH°, -419.53 kJ · mol−1
- ^ ΔfG°, -414.49 kJ · mol−1
- ^ S°, 159.0 J · K−1 · mol−1
- ^ Cp°, -114.6 J · K−1 · mol−1