B2H6 + 4Fe2O3 → 2B + 6FeO + 2Fe(OH)3
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- Reaction of diborane(6) and iron(III) oxide
The reaction of diborane(6) and iron(III) oxide yields , iron(II) oxide, and iron(III) hydroxide (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 diborane(6) and iron(III) oxide
General equation
- Reaction of reducing species and reducible species
- Reducing speciesReducing agent + Reducible speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of diborane(6) and iron(III) oxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| B2H6 | Diborane(6) | 1 | Reducing | Reducing |
| Fe2O3 | Iron(III) oxide | 4 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 2 | Oxidized | – | ||
| FeO | Iron(II) oxide | 6 | Reduced | – |
| Fe(OH)3 | Iron(III) hydroxide | 2 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of diborane(6) and iron(III) oxide
| 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 | −16.8 | – | – | – |
per 1 mol of | −16.8 | – | – | – |
per 1 mol of | −4.20 | – | – | – |
| −8.40 | – | – | – | |
per 1 mol of | −2.80 | – | – | – |
per 1 mol of | −8.40 | – | – | – |
Changes in standard condition (2)
- Reaction of diborane(6) and iron(III) oxide
| 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 | −9.2 | – | – | – |
per 1 mol of | −9.2 | – | – | – |
per 1 mol of | −2.3 | – | – | – |
| −4.6 | – | – | – | |
per 1 mol of | −1.5 | – | – | – |
per 1 mol of | −4.6 | – | – | – |
Changes in aqueous solution
- Reaction of diborane(6) and iron(III) oxide
| 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 | – | – | – | – |
per 1 mol of | – | – | – | – |
per 1 mol of | – | – | – | – |
| – | – | – | – | |
per 1 mol of | – | – | – | – |
per 1 mol of | – | – | – | – |
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 |
|---|---|---|---|---|
| B2H6 (g) | 35.6[1] | 86.7[1] | 232.11[1] | 56.90[1] |
| Fe2O3 (cr) | -824.2[1] | -742.2[1] | 87.40[1] | 103.85[1] |
* (g):Gas, (cr):Crystalline solid
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 |
|---|---|---|---|---|
| (cr) | 0[1] | 0[1] | 5.86[1] | 11.09[1] |
| (am) x denotes undetermined zero point entropy | 3.8[1] | – | 6.53+x[1] | 11.97[1] |
| (g) | 562.7[1] | 518.8[1] | 153.45[1] | 20.799[1] |
| FeO (cr) | -272.0[1] | – | – | – |
| Fe(OH)3 (cr) precipitated | -823.0[1] | -696.5[1] | 106.7[1] | – |
| Fe(OH)3 (ao) | – | -659.3[1] | – | – |
* (cr):Crystalline solid, (am):Amorphous 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°, 35.6 kJ · mol−1
- ^ ΔfG°, 86.7 kJ · mol−1
- ^ S°, 232.11 J · K−1 · mol−1
- ^ Cp°, 56.90 J · K−1 · mol−1
- ^ ΔfH°, -824.2 kJ · mol−1
- ^ ΔfG°, -742.2 kJ · mol−1
- ^ S°, 87.40 J · K−1 · mol−1
- ^ Cp°, 103.85 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 5.86 J · K−1 · mol−1
- ^ Cp°, 11.09 J · K−1 · mol−1
- ^ ΔfH°, 3.8 kJ · mol−1
- ^ S°, 6.53+x J · K−1 · mol−1
- ^ Cp°, 11.97 J · K−1 · mol−1
- ^ ΔfH°, 562.7 kJ · mol−1
- ^ ΔfG°, 518.8 kJ · mol−1
- ^ S°, 153.45 J · K−1 · mol−1
- ^ Cp°, 20.799 J · K−1 · mol−1
- ^ ΔfH°, -272.0 kJ · mol−1
- ^ ΔfH°, -823.0 kJ · mol−1
- ^ ΔfG°, -696.5 kJ · mol−1
- ^ S°, 106.7 J · K−1 · mol−1
- ^ ΔfG°, -659.3 kJ · mol−1