SrCrO4 + 3e− → SrO + Cr3+ + 3O2−
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- Reduction of strontium chromate
Reduction of strontium chromate yields strontium oxide, chromium(III) ion, and oxide ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reduction of strontium chromate
General equation
- Reduction of reducible species
- ReactantOxidizing agent + e− ⟶ ProductReduction product
Oxidation state of each atom
- Reduction of strontium chromate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrCrO4 | Strontium chromate | 1 | Oxidizing | – |
| e− | Electron | 3 | – | Electron |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrO | Strontium oxide | 1 | – | – |
| Cr3+ | Chromium(III) ion | 1 | Reduced | – |
| O2− | Oxide ion | 3 | – | – |
Thermodynamic changes
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 |
|---|---|---|---|---|
| SrCrO4 | – | – | – | – |
| e− | – | – | – | – |
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 |
|---|---|---|---|---|
| SrO (cr) | -592.0[1] | -561.9[1] | 54.4[1] | 45.02[1] |
| SrO (g) | -8[1] | – | – | – |
| Cr3+ (g) | 5648.4[1] | – | – | – |
| O2− | – | – | – | – |
* (cr):Crystalline solid, (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)