FeBr3 + 2Fe3+ → 3FeBr2+
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- Reaction of iron(III) bromide and iron(III) ion
The reaction of iron(III) bromide and iron(III) ion yields iron(III) bromide ion. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of iron(III) bromide and iron(III) ion
General equation
- Reaction of neutral species and cation
- CompoundLewis base + CationLewis acid ⟶ CationLewis conjugate
Oxidation state of each atom
- Reaction of iron(III) bromide and iron(III) ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| FeBr3 | Iron(III) bromide | 1 | Lewis base | Compound |
| Fe3+ | Iron(III) ion | 2 | Lewis acid | Cation |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| FeBr2+ | Iron(III) bromide ion | 3 | Lewis conjugate | Cation |
Thermodynamic changes
Changes in standard condition
- Reaction of iron(III) bromide and iron(III) ion◆
ΔrG −10.5 kJ/mol K 6.91 × 101 pK −1.84
| 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 | 76.0 | −10.5 | 286 | – |
per 1 mol of | 76.0 | −10.5 | 286 | – |
per 1 mol of Iron(III) ion | 38.0 | −5.25 | 143 | – |
per 1 mol of Iron(III) bromide ion | 25.3 | −3.50 | 95.3 | – |
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 |
|---|---|---|---|---|
| FeBr3 (cr) | -268.2[1] | – | – | – |
| FeBr3 (g) | -123.8[1] | – | – | – |
| FeBr3 (ai) | -413.4[1] | -316.7[1] | -68.6[1] | – |
| Fe3+ (g) | 5712.8[1] | – | – | – |
| Fe3+ (ao) | -48.5[1] | -4.7[1] | -315.9[1] | – |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-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 |
|---|---|---|---|---|
| FeBr2+ (ao) | -144.8[1] | -112.2[1] | -138[1] | – |
* (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°, -268.2 kJ · mol−1
- ^ ΔfH°, -123.8 kJ · mol−1
- ^ ΔfH°, -413.4 kJ · mol−1
- ^ ΔfG°, -316.7 kJ · mol−1
- ^ S°, -68.6 J · K−1 · mol−1
- ^ ΔfH°, 5712.8 kJ · mol−1
- ^ ΔfH°, -48.5 kJ · mol−1
- ^ ΔfG°, -4.7 kJ · mol−1
- ^ S°, -315.9 J · K−1 · mol−1
- ^ ΔfH°, -144.8 kJ · mol−1
- ^ ΔfG°, -112.2 kJ · mol−1
- ^ S°, -138. J · K−1 · mol−1