12CsBr + 2KMnO4 + 8H2O 🔥→ 12CsOH + 5Br2 + 2Mn(OH)2 + 2KBr
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- Reaction of caesium bromide and potassium permanganate under neutral condition
The reaction of caesium bromide, potassium permanganate, and water yields caesium hydroxide, , manganese(II) hydroxide, and potassium bromide (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 bromide and potassium permanganate under neutral condition
General equation
- Reaction of hardly oxidizable species and oxidizing species under neutral condition
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H2ONon-redox agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of caesium bromide and potassium permanganate under neutral condition
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
CsBr | Caesium bromide | 12 | Reducing | Hardly oxidizable |
KMnO4 | Potassium permanganate | 2 | Oxidizing | Oxidizing |
H2O | Water | 8 | – | Water |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
CsOH | Caesium hydroxide | 12 | – | – |
5 | Oxidized | – | ||
Mn(OH)2 | Manganese(II) hydroxide | 2 | Reduced | – |
KBr | Potassium bromide | 2 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of caesium bromide and potassium permanganate under neutral condition
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 | 1645.6 | – | – | – |
per 1 mol of | 137.13 | – | – | – |
per 1 mol of | 822.80 | – | – | – |
per 1 mol of | 205.70 | – | – | – |
per 1 mol of | 137.13 | – | – | – |
329.12 | – | – | – | |
per 1 mol of | 822.80 | – | – | – |
per 1 mol of | 822.80 | – | – | – |
Changes in aqueous solution
- Reaction of caesium bromide and potassium permanganate under neutral condition◆
ΔrG 733.9 kJ/mol K 0.27 × 10−128 pK 128.57
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 | 421.3 | 733.9 | −1044.1 | – |
per 1 mol of | 35.11 | 61.16 | −87.008 | – |
per 1 mol of | 210.7 | 366.9 | −522.05 | – |
per 1 mol of | 52.66 | 91.74 | −130.51 | – |
per 1 mol of | 35.11 | 61.16 | −87.008 | – |
84.26 | 146.8 | −208.82 | – | |
per 1 mol of | 210.7 | 366.9 | −522.05 | – |
per 1 mol of | 210.7 | 366.9 | −522.05 | – |
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 |
---|---|---|---|---|
CsBr (cr) | -405.81[1] | -391.41[1] | 113.05[1] | 52.93[1] |
CsBr (g) | -209.2[1] | -241.0[1] | 267.43[1] | 37.07[1] |
CsBr (ai) | -379.82[1] | -395.97[1] | 215.48[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] |
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] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid
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 |
---|---|---|---|---|
CsOH (cr) | -417.23[1] | – | – | – |
CsOH (g) | -247[1] | -247[1] | 254.83[1] | 49.71[1] |
CsOH (ai) | -488.27[1] | -449.25[1] | 122.30[1] | – |
CsOH (cr) 1 hydrate | -754.04[1] | – | – | – |
(cr) | – | – | – | – |
(l) | 0[1] | 0[1] | 152.231[1] | 75.689[1] |
(g) | 30.907[1] | 3.110[1] | 245.463[1] | 36.02[1] |
(ao) | -2.59[1] | 3.93[1] | 130.5[1] | – |
Mn(OH)2 (am) precipitated | -695.4[1] | -615.0[1] | 99.2[1] | – |
KBr (cr) | -393.798[1] | -380.66[1] | 95.90[1] | 52.30[1] |
KBr (g) | -180.08[1] | -212.96[1] | 250.52[1] | 36.920[1] |
KBr (ai) | -373.92[1] | -387.23[1] | 184.9[1] | -120.1[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid, (ao):Un-ionized aqueous solution, (am):Amorphous solid
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°, -405.81 kJ · mol−1
- ^ ΔfG°, -391.41 kJ · mol−1
- ^ S°, 113.05 J · K−1 · mol−1
- ^ Cp°, 52.93 J · K−1 · mol−1
- ^ ΔfH°, -209.2 kJ · mol−1
- ^ ΔfG°, -241.0 kJ · mol−1
- ^ S°, 267.43 J · K−1 · mol−1
- ^ Cp°, 37.07 J · K−1 · mol−1
- ^ ΔfH°, -379.82 kJ · mol−1
- ^ ΔfG°, -395.97 kJ · mol−1
- ^ S°, 215.48 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°, -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
- ^ ΔfH°, -417.23 kJ · mol−1
- ^ ΔfH°, -247. kJ · mol−1
- ^ ΔfG°, -247. kJ · mol−1
- ^ S°, 254.83 J · K−1 · mol−1
- ^ Cp°, 49.71 J · K−1 · mol−1
- ^ ΔfH°, -488.27 kJ · mol−1
- ^ ΔfG°, -449.25 kJ · mol−1
- ^ S°, 122.30 J · K−1 · mol−1
- ^ ΔfH°, -754.04 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 152.231 J · K−1 · mol−1
- ^ Cp°, 75.689 J · K−1 · mol−1
- ^ ΔfH°, 30.907 kJ · mol−1
- ^ ΔfG°, 3.110 kJ · mol−1
- ^ S°, 245.463 J · K−1 · mol−1
- ^ Cp°, 36.02 J · K−1 · mol−1
- ^ ΔfH°, -2.59 kJ · mol−1
- ^ ΔfG°, 3.93 kJ · mol−1
- ^ S°, 130.5 J · K−1 · mol−1
- ^ ΔfH°, -695.4 kJ · mol−1
- ^ ΔfG°, -615.0 kJ · mol−1
- ^ S°, 99.2 J · K−1 · mol−1
- ^ ΔfH°, -393.798 kJ · mol−1
- ^ ΔfG°, -380.66 kJ · mol−1
- ^ S°, 95.90 J · K−1 · mol−1
- ^ Cp°, 52.30 J · K−1 · mol−1
- ^ ΔfH°, -180.08 kJ · mol−1
- ^ ΔfG°, -212.96 kJ · mol−1
- ^ S°, 250.52 J · K−1 · mol−1
- ^ Cp°, 36.920 J · K−1 · mol−1
- ^ ΔfH°, -373.92 kJ · mol−1
- ^ ΔfG°, -387.23 kJ · mol−1
- ^ S°, 184.9 J · K−1 · mol−1
- ^ Cp°, -120.1 J · K−1 · mol−1