5CsI + 3KMnO4 + 14H+ → 5Cs+ + 2HIO3 + 3Mn3+ + 3KI + 6H2O
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- Reaction of caesium iodide and potassium permanganate under acidic condition
- 5CsICaesium iodide + 3KMnO4Potassium permanganate + 14H+Hydrogen ion5Cs+Caesium ion + 2HIO3Iodic acid + 3Mn3+Manganese(III) ion + 3KIPotassium iodide + 6H2OWater⟶
The reaction of caesium iodide, potassium permanganate, and hydrogen ion yields caesium ion, iodic acid, manganese(III) ion, potassium iodide, and water (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 caesium iodide and potassium permanganate under acidic condition
- 5CsICaesium iodide + 3KMnO4Potassium permanganate + 14H+Hydrogen ion5Cs+Caesium ion + 2HIO3Iodic acid + 3Mn3+Manganese(III) ion + 3KIPotassium iodide + 6H2OWater⟶
General equation
- Reaction of oxidizable species and oxidizing species under acidic condition
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent ⟶ ProductOxidation product + ProductReduction product + H2ONon-redox product
Oxidation state of each atom
- Reaction of caesium iodide and potassium permanganate under acidic condition
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsI | Caesium iodide | 5 | Reducing | Oxidizable |
| KMnO4 | Potassium permanganate | 3 | Oxidizing | Oxidizing under acidic condition |
| H+ | Hydrogen ion | 14 | – | Hydrogen ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Cs+ | Caesium ion | 5 | – | – |
| HIO3 | Iodic acid | 2 | Oxidized | – |
| Mn3+ | Manganese(III) ion | 3 | Reduced | – |
| KI | Potassium iodide | 3 | – | – |
| H2O | Water | 6 | – | Water |
Thermodynamic changes
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 |
|---|---|---|---|---|
| CsI (cr) | -346.60[1] | -340.58[1] | 123.05[1] | 52.80[1] |
| CsI (g) | -151.9[1] | -191.2[1] | 275.29[1] | 37.45[1] |
| CsI (ai) | -313.47[1] | -343.59[1] | 244.3[1] | -152.7[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] |
| H+ (g) | 1536.202[1] | – | – | – |
| H+ (ao) | 0[1] | 0[1] | 0[1] | 0[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-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 |
|---|---|---|---|---|
| Cs+ (g) | 457.964[1] | – | – | – |
| Cs+ (ao) | -258.28[1] | -292.02[1] | 133.05[1] | -10.5[1] |
| HIO3 (cr) | -230.1[1] | – | – | – |
| HIO3 (ao) | -211.3[1] | -132.6[1] | 166.9[1] | – |
| Mn3+ (g) | 5776.4[1] | – | – | – |
| KI (cr) | -327.900[1] | -324.892[1] | 106.32[1] | 52.93[1] |
| KI (g) | -125.5[1] | -166.1[1] | 258.3[1] | 37.11[1] |
| KI (ai) | -307.57[1] | -334.85[1] | 213.8[1] | -120.5[1] |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid
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°, -346.60 kJ · mol−1
- ^ ΔfG°, -340.58 kJ · mol−1
- ^ S°, 123.05 J · K−1 · mol−1
- ^ Cp°, 52.80 J · K−1 · mol−1
- ^ ΔfH°, -151.9 kJ · mol−1
- ^ ΔfG°, -191.2 kJ · mol−1
- ^ S°, 275.29 J · K−1 · mol−1
- ^ Cp°, 37.45 J · K−1 · mol−1
- ^ ΔfH°, -313.47 kJ · mol−1
- ^ ΔfG°, -343.59 kJ · mol−1
- ^ S°, 244.3 J · K−1 · mol−1
- ^ Cp°, -152.7 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°, 1536.202 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 0 J · K−1 · mol−1
- ^ Cp°, 0 J · K−1 · mol−1
- ^ ΔfH°, 457.964 kJ · mol−1
- ^ ΔfH°, -258.28 kJ · mol−1
- ^ ΔfG°, -292.02 kJ · mol−1
- ^ S°, 133.05 J · K−1 · mol−1
- ^ Cp°, -10.5 J · K−1 · mol−1
- ^ ΔfH°, -230.1 kJ · mol−1
- ^ ΔfH°, -211.3 kJ · mol−1
- ^ ΔfG°, -132.6 kJ · mol−1
- ^ S°, 166.9 J · K−1 · mol−1
- ^ ΔfH°, 5776.4 kJ · mol−1
- ^ ΔfH°, -327.900 kJ · mol−1
- ^ ΔfG°, -324.892 kJ · mol−1
- ^ S°, 106.32 J · K−1 · mol−1
- ^ Cp°, 52.93 J · K−1 · mol−1
- ^ ΔfH°, -125.5 kJ · mol−1
- ^ ΔfG°, -166.1 kJ · mol−1
- ^ S°, 258.3 J · K−1 · mol−1
- ^ Cp°, 37.11 J · K−1 · mol−1
- ^ ΔfH°, -307.57 kJ · mol−1
- ^ ΔfG°, -334.85 kJ · mol−1
- ^ S°, 213.8 J · K−1 · mol−1
- ^ Cp°, -120.5 J · K−1 · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1