2RbNO3 🔥→ Rb2O + 2NO↑ + O3↑
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- Decomposition of rubidium nitrate
Decomposition of rubidium nitrate yields rubidium oxide, nitrogen monoxide, and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Decomposition of rubidium nitrate
General equation
- Thermal decomposition of oxoacid salt with redox
- Oxoacid saltSelf redox agent🔥⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Decomposition of rubidium nitrate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| RbNO3 | Rubidium nitrate | 2 | Self redox agent | Oxoacid salt |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Rb2O | Rubidium oxide | 1 | – | – |
| NO | Nitrogen monoxide | 2 | Reduced | – |
| 1 | Oxidized | – |
Thermodynamic changes
Changes in standard condition
- Decomposition of rubidium 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 | 974 | – | – | – |
per 1 mol of | 487 | – | – | – |
per 1 mol of | 974 | – | – | – |
per 1 mol of | 487 | – | – | – |
| 974 | – | – | – |
Changes in aqueous solution (1)
- Decomposition of rubidium 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 | 901 | – | – | – |
per 1 mol of | 451 | – | – | – |
per 1 mol of | 901 | – | – | – |
per 1 mol of | 451 | – | – | – |
| 901 | – | – | – |
Changes in aqueous solution (2)
- Decomposition of rubidium 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 | 884 | – | – | – |
per 1 mol of | 442 | – | – | – |
per 1 mol of | 884 | – | – | – |
per 1 mol of | 442 | – | – | – |
| 884 | – | – | – |
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 |
|---|---|---|---|---|
| RbNO3 (cr) | -495.05[1] | -395.78[1] | 147.3[1] | 102.1[1] |
| RbNO3 (ai) | -458.52[1] | -395.24[1] | 267.8[1] | – |
* (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 |
|---|---|---|---|---|
| Rb2O (cr) | -339[1] | – | – | – |
| Rb2O (g) | -50[1] | – | – | – |
| NO (g) | 90.25[1] | 86.55[1] | 210.761[1] | 29.844[1] |
| (g) | 142.7[1] | 163.2[1] | 238.93[1] | 39.20[1] |
| (ao) | 125.9[1] | 174.1[1] | 146[1] | – |
* (cr):Crystalline solid, (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°, -495.05 kJ · mol−1
- ^ ΔfG°, -395.78 kJ · mol−1
- ^ S°, 147.3 J · K−1 · mol−1
- ^ Cp°, 102.1 J · K−1 · mol−1
- ^ ΔfH°, -458.52 kJ · mol−1
- ^ ΔfG°, -395.24 kJ · mol−1
- ^ S°, 267.8 J · K−1 · mol−1
- ^ ΔfH°, -339. kJ · mol−1
- ^ ΔfH°, -50. 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
- ^ ΔfH°, 142.7 kJ · mol−1
- ^ ΔfG°, 163.2 kJ · mol−1
- ^ S°, 238.93 J · K−1 · mol−1
- ^ Cp°, 39.20 J · K−1 · mol−1
- ^ ΔfH°, 125.9 kJ · mol−1
- ^ ΔfG°, 174.1 kJ · mol−1
- ^ S°, 146. J · K−1 · mol−1