8H2 + Co(NO3)2 → 2NH3 + CoO + 5H2O
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- Reaction of and cobalt(II) nitrate
The reaction of and cobalt(II) nitrate yields ammonia, cobalt(II) oxide, 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 and cobalt(II) nitrate
General equation
- Reaction of reducing species and oxidizing species
- Reducing speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and cobalt(II) nitrate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 8 | Reducing | Reducing | ||
| Co(NO3)2 | Cobalt(II) nitrate | 1 | Oxidizing | Oxidizing |
Products
Thermodynamic changes
Changes in standard condition
- Reaction of and cobalt(II) nitrate
| 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 | −1338.8 | – | – | – |
| −167.35 | – | – | – | |
per 1 mol of | −1338.8 | – | – | – |
per 1 mol of | −669.40 | – | – | – |
per 1 mol of | −1338.8 | – | – | – |
per 1 mol of | −267.76 | – | – | – |
Changes in aqueous solution (1)
- Reaction of and cobalt(II) nitrate◆
ΔrG −1296.6 kJ/mol K 1.43 × 10227 pK −227.15
| 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 | −1252.9 | −1296.6 | −4009 | – |
| −156.61 | −162.07 | −501.1 | – | |
per 1 mol of | −1252.9 | −1296.6 | −4009 | – |
per 1 mol of | −626.45 | −648.30 | −2005 | – |
per 1 mol of | −1252.9 | −1296.6 | −4009 | – |
per 1 mol of | −250.58 | −259.32 | −801.8 | – |
Changes in aqueous solution (2)
- Reaction of and cobalt(II) nitrate◆
ΔrG −1316.7 kJ/mol K 4.74 × 10230 pK −230.68
| 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 | −1321.3 | −1316.7 | −4171 | – |
| −165.16 | −164.59 | −521.4 | – | |
per 1 mol of | −1321.3 | −1316.7 | −4171 | – |
per 1 mol of | −660.65 | −658.35 | −2086 | – |
per 1 mol of | −1321.3 | −1316.7 | −4171 | – |
per 1 mol of | −264.26 | −263.34 | −834.2 | – |
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 |
|---|---|---|---|---|
| (g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
| (ao) | -4.2[1] | 17.6[1] | 577[1] | – |
| Co(NO3)2 (cr) | -420.5[1] | – | – | – |
| Co(NO3)2 (ai) | -472.8[1] | -276.9[1] | 180[1] | – |
| Co(NO3)2 (cr) 2 hydrate | -1021.7[1] | – | – | – |
| Co(NO3)2 (cr) 3 hydrate | -1325.9[1] | – | – | – |
| Co(NO3)2 (cr) 4 hydrate | -1630.5[1] | – | – | – |
| Co(NO3)2 (cr) 6 hydrate | -2211.20[1] | – | – | 452[1] |
* (g):Gas, (ao):Un-ionized 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 |
|---|---|---|---|---|
| NH3 (g) | -46.11[1] | -16.45[1] | 192.45[1] | 35.06[1] |
| NH3 (ao) | -80.29[1] | -26.50[1] | 111.3[1] | – |
| CoO (cr) | -237.94[1] | -214.20[1] | 52.97[1] | 55.23[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, (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°, 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
- ^ ΔfH°, -420.5 kJ · mol−1
- ^ ΔfH°, -472.8 kJ · mol−1
- ^ ΔfG°, -276.9 kJ · mol−1
- ^ S°, 180. J · K−1 · mol−1
- ^ ΔfH°, -1021.7 kJ · mol−1
- ^ ΔfH°, -1325.9 kJ · mol−1
- ^ ΔfH°, -1630.5 kJ · mol−1
- ^ ΔfH°, -2211.20 kJ · mol−1
- ^ Cp°, 452. J · K−1 · mol−1
- ^ ΔfH°, -46.11 kJ · mol−1
- ^ ΔfG°, -16.45 kJ · mol−1
- ^ S°, 192.45 J · K−1 · mol−1
- ^ Cp°, 35.06 J · K−1 · mol−1
- ^ ΔfH°, -80.29 kJ · mol−1
- ^ ΔfG°, -26.50 kJ · mol−1
- ^ S°, 111.3 J · K−1 · mol−1
- ^ ΔfH°, -237.94 kJ · mol−1
- ^ ΔfG°, -214.20 kJ · mol−1
- ^ S°, 52.97 J · K−1 · mol−1
- ^ Cp°, 55.23 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