(NH4)2S + 3H2O 💧⚡→ N2O3↑ + H2S↑ + 6H2↑
Last updated:
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent
Electrolysis of aqueous ammonium sulfide yields dinitrogen trioxide, hydrogen sulfide, and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent
General equation
- Electrolysis of aqueous solution with water as oxidizing agent
- Miscible with water/Very soluble in water/Soluble in waterReducing agent + H2OOxidizing agent💧⚡⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| (NH4)2S | Ammonium sulfide | 1 | Reducing | Very soluble in water |
| H2O | Water | 3 | Oxidizing | Water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| N2O3 | Dinitrogen trioxide | 1 | Oxidized | – |
| H2S | Hydrogen sulfide | 1 | – | – |
| 6 | Reduced | – |
Thermodynamic changes
Changes in aqueous solution (1)
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent◆
ΔrG 889.9 kJ/mol K 0.12 × 10−155 pK 155.90
| 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 | 1152.4 | 889.9 | 880.3 | – |
per 1 mol of | 1152.4 | 889.9 | 880.3 | – |
per 1 mol of | 384.13 | 296.6 | 293.4 | – |
per 1 mol of | 1152.4 | 889.9 | 880.3 | – |
per 1 mol of | 1152.4 | 889.9 | 880.3 | – |
| 192.07 | 148.3 | 146.7 | – |
Changes in aqueous solution (2)
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent◆
ΔrG 995.5 kJ/mol K 0.39 × 10−174 pK 174.40
| 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 | 1127.2 | 995.5 | 3558 | – |
per 1 mol of | 1127.2 | 995.5 | 3558 | – |
per 1 mol of | 375.73 | 331.8 | 1186 | – |
per 1 mol of | 1127.2 | 995.5 | 3558 | – |
per 1 mol of | 1127.2 | 995.5 | 3558 | – |
| 187.87 | 165.9 | 593.0 | – |
Changes in aqueous solution (3)
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent◆
ΔrG 895.6 kJ/mol K 0.13 × 10−156 pK 156.90
| 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 | 1133.3 | 895.6 | 796 | – |
per 1 mol of | 1133.3 | 895.6 | 796 | – |
per 1 mol of | 377.77 | 298.5 | 265 | – |
per 1 mol of | 1133.3 | 895.6 | 796 | – |
per 1 mol of | 1133.3 | 895.6 | 796 | – |
| 188.88 | 149.3 | 133 | – |
Changes in aqueous solution (4)
- Electrolysis of aqueous ammonium sulfide with water as oxidizing agent◆
ΔrG 1001.2 kJ/mol K 0.40 × 10−175 pK 175.40
| 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 | 1108.1 | 1001.2 | 3473 | – |
per 1 mol of | 1108.1 | 1001.2 | 3473 | – |
per 1 mol of | 369.37 | 333.73 | 1158 | – |
per 1 mol of | 1108.1 | 1001.2 | 3473 | – |
per 1 mol of | 1108.1 | 1001.2 | 3473 | – |
| 184.68 | 166.87 | 578.8 | – |
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 |
|---|---|---|---|---|
| (NH4)2S (ai) | -231.8[1] | -72.6[1] | 212.1[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] |
* (ai):Ionized aqueous solution, (cr):Crystalline solid, (l):Liquid, (g):Gas
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 |
|---|---|---|---|---|
| N2O3 (l) | 50.29[1] | – | – | – |
| N2O3 (g) | 83.72[1] | 139.46[1] | 312.28[1] | 65.61[1] |
| H2S (g) | -20.63[1] | -33.56[1] | 205.79[1] | 34.23[1] |
| H2S (ao) | -39.7[1] | -27.83[1] | 121[1] | – |
| (g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
| (ao) | -4.2[1] | 17.6[1] | 577[1] | – |
* (l):Liquid, (g):Gas, (ao):Un-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°, -231.8 kJ · mol−1
- ^ ΔfG°, -72.6 kJ · mol−1
- ^ S°, 212.1 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°, 50.29 kJ · mol−1
- ^ ΔfH°, 83.72 kJ · mol−1
- ^ ΔfG°, 139.46 kJ · mol−1
- ^ S°, 312.28 J · K−1 · mol−1
- ^ Cp°, 65.61 J · K−1 · mol−1
- ^ ΔfH°, -20.63 kJ · mol−1
- ^ ΔfG°, -33.56 kJ · mol−1
- ^ S°, 205.79 J · K−1 · mol−1
- ^ Cp°, 34.23 J · K−1 · mol−1
- ^ ΔfH°, -39.7 kJ · mol−1
- ^ ΔfG°, -27.83 kJ · mol−1
- ^ S°, 121. J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 130.684 J · K−1 · mol−1
- ^ Cp°, 28.824 J · K−1 · mol−1
- ^ ΔfH°, -4.2 kJ · mol−1
- ^ ΔfG°, 17.6 kJ · mol−1
- ^ S°, 577 J · K−1 · mol−1