N2O + KMnO4 → KNO3 + MnO + NO
Last updated:
The reaction of dinitrotgen monoxide and potassium permanganate yields potassium nitrate, manganese(II) oxide, and nitrogen monoxide (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 dinitrotgen monoxide and potassium permanganate
General equation
- Reaction of oxidizable species and oxidizing species
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of dinitrotgen monoxide and potassium permanganate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
N2O | Dinitrotgen monoxide | 1 | Reducing | Oxidizable |
KMnO4 | Potassium permanganate | 1 | Oxidizing | Oxidizing |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
KNO3 | Potassium nitrate | 1 | Oxidized | – |
MnO | Manganese(II) oxide | 1 | Reduced | – |
NO | Nitrogen monoxide | 1 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of dinitrotgen monoxide and potassium permanganate◆
ΔrG −37.8 kJ/mol K 4.19 × 106 pK −6.62
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 | −34.4 | −37.8 | 11.96 | 15.66 |
per 1 mol of | −34.4 | −37.8 | 11.96 | 15.66 |
per 1 mol of | −34.4 | −37.8 | 11.96 | 15.66 |
per 1 mol of | −34.4 | −37.8 | 11.96 | 15.66 |
per 1 mol of | −34.4 | −37.8 | 11.96 | 15.66 |
per 1 mol of | −34.4 | −37.8 | 11.96 | 15.66 |
Changes in aqueous solution
- Reaction of dinitrotgen monoxide 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 | −17.0 | – | – | – |
per 1 mol of | −17.0 | – | – | – |
per 1 mol of | −17.0 | – | – | – |
per 1 mol of | −17.0 | – | – | – |
per 1 mol of | −17.0 | – | – | – |
per 1 mol of | −17.0 | – | – | – |
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 |
---|---|---|---|---|
N2O (g) | 82.05[1] | 104.20[1] | 219.85[1] | 38.45[1] |
N2O (aq) | 56.1[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] |
* (g):Gas, (aq):Aqueous solution, (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 |
---|---|---|---|---|
KNO3 (cr) | -494.63[1] | -394.86[1] | 133.05[1] | 96.40[1] |
KNO3 (ai) | -459.74[1] | -394.53[1] | 248.9[1] | -64.9[1] |
MnO (cr) | -385.22[1] | -362.90[1] | 59.71[1] | 45.44[1] |
MnO (g) | 124.22[1] | – | – | – |
NO (g) | 90.25[1] | 86.55[1] | 210.761[1] | 29.844[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (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°, 82.05 kJ · mol−1
- ^ ΔfG°, 104.20 kJ · mol−1
- ^ S°, 219.85 J · K−1 · mol−1
- ^ Cp°, 38.45 J · K−1 · mol−1
- ^ ΔfH°, 56.1 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°, -494.63 kJ · mol−1
- ^ ΔfG°, -394.86 kJ · mol−1
- ^ S°, 133.05 J · K−1 · mol−1
- ^ Cp°, 96.40 J · K−1 · mol−1
- ^ ΔfH°, -459.74 kJ · mol−1
- ^ ΔfG°, -394.53 kJ · mol−1
- ^ S°, 248.9 J · K−1 · mol−1
- ^ Cp°, -64.9 J · K−1 · mol−1
- ^ ΔfH°, -385.22 kJ · mol−1
- ^ ΔfG°, -362.90 kJ · mol−1
- ^ S°, 59.71 J · K−1 · mol−1
- ^ Cp°, 45.44 J · K−1 · mol−1
- ^ ΔfH°, 124.22 kJ · mol−1
- ^ ΔfH°, 90.25 kJ · mol−1
- ^ ΔfG°, 86.55 kJ · mol−1
- ^ S°, 210.761 J · K−1 · mol−1
- ^ Cp°, 29.844 J · K−1 · mol−1