9FeCl2 + 2MnO2 🔥→ 6FeCl3 + Fe3O4 + 2Mn
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- Reaction of iron(II) chloride and manganese(IV) oxide
The reaction of iron(II) chloride and manganese(IV) oxide yields iron(III) chloride, iron(II,III) oxide, and (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 iron(II) chloride and manganese(IV) oxide
General equation
- Reaction of oxidizable species and reducible species
- Oxidizable speciesReducing agent + Reducible speciesOxidizing agent🔥⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of iron(II) chloride and manganese(IV) oxide
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
FeCl2 | Iron(II) chloride | 9 | Reducing | Oxidizable |
MnO2 | Manganese(IV) oxide | 2 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
FeCl3 | Iron(III) chloride | 6 | Oxidized | – |
Fe3O4 | Iron(II,III) oxide | 1 | Oxidized | – |
2 | Reduced | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG 631.6 kJ/mol K 0.22 × 10−110 pK 110.65
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 | 600.8 | 631.6 | −103.4 | −22.16 |
per 1 mol of | 66.76 | 70.18 | −11.49 | −2.462 |
per 1 mol of | 300.4 | 315.8 | −51.70 | −11.08 |
per 1 mol of | 100.1 | 105.3 | −17.23 | −3.693 |
per 1 mol of | 600.8 | 631.6 | −103.4 | −22.16 |
300.4 | 315.8 | −51.70 | −11.08 |
Changes in standard condition (2)
- Reaction of iron(II) chloride and manganese(IV) 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 | – | – | −98.7 | −21.74 |
per 1 mol of | – | – | −11.0 | −2.416 |
per 1 mol of | – | – | −49.4 | −10.87 |
per 1 mol of | – | – | −16.4 | −3.623 |
per 1 mol of | – | – | −98.7 | −21.74 |
– | – | −49.4 | −10.87 |
Changes in standard condition (3)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG 634.4 kJ/mol K 0.72 × 10−111 pK 111.14
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 | 603.9 | 634.4 | −102.6 | −19.66 |
per 1 mol of | 67.10 | 70.49 | −11.40 | −2.184 |
per 1 mol of | 301.9 | 317.2 | −51.30 | −9.830 |
per 1 mol of | 100.6 | 105.7 | −17.10 | −3.277 |
per 1 mol of | 603.9 | 634.4 | −102.6 | −19.66 |
301.9 | 317.2 | −51.30 | −9.830 |
Changes in standard condition (4)
- Reaction of iron(II) chloride and manganese(IV) 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 | 565.8 | – | – | – |
per 1 mol of | 62.87 | – | – | – |
per 1 mol of | 282.9 | – | – | – |
per 1 mol of | 94.30 | – | – | – |
per 1 mol of | 565.8 | – | – | – |
282.9 | – | – | – |
Changes in standard condition (5)
- Reaction of iron(II) chloride and manganese(IV) 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 | – | – | – | – |
– | – | – | – |
Changes in standard condition (6)
- Reaction of iron(II) chloride and manganese(IV) 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 | 568.9 | – | – | – |
per 1 mol of | 63.21 | – | – | – |
per 1 mol of | 284.4 | – | – | – |
per 1 mol of | 94.82 | – | – | – |
per 1 mol of | 568.9 | – | – | – |
284.4 | – | – | – |
Changes in aqueous solution (1)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG −0.2 kJ/mol K 1.08 × 100 pK −0.04
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 | – | −0.2 | – | – |
per 1 mol of | – | −0.022 | – | – |
per 1 mol of | – | −0.10 | – | – |
per 1 mol of | – | −0.033 | – | – |
per 1 mol of | – | −0.20 | – | – |
– | −0.10 | – | – |
Changes in aqueous solution (2)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG 37.0 kJ/mol K 0.33 × 10−6 pK 6.48
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 | – | 37.0 | – | – |
per 1 mol of | – | 4.11 | – | – |
per 1 mol of | – | 18.5 | – | – |
per 1 mol of | – | 6.17 | – | – |
per 1 mol of | – | 37.0 | – | – |
– | 18.5 | – | – |
Changes in aqueous solution (3)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG 559.9 kJ/mol K 0.81 × 10−98 pK 98.09
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 | – | 559.9 | – | – |
per 1 mol of | – | 62.21 | – | – |
per 1 mol of | – | 279.9 | – | – |
per 1 mol of | – | 93.32 | – | – |
per 1 mol of | – | 559.9 | – | – |
– | 279.9 | – | – |
Changes in aqueous solution (4)
- Reaction of iron(II) chloride and manganese(IV) oxide◆
ΔrG 597.1 kJ/mol K 0.25 × 10−104 pK 104.61
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 | 431.1 | 597.1 | −551.8 | – |
per 1 mol of | 47.90 | 66.34 | −61.31 | – |
per 1 mol of | 215.6 | 298.6 | −275.9 | – |
per 1 mol of | 71.85 | 99.52 | −91.97 | – |
per 1 mol of | 431.1 | 597.1 | −551.8 | – |
215.6 | 298.6 | −275.9 | – |
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 |
---|---|---|---|---|
FeCl2 (cr) | -341.79[1] | -302.30[1] | 117.95[1] | 76.65[1] |
FeCl2 (g) | -148.5[1] | – | – | – |
FeCl2 (ai) | -423.4[1] | -341.34[1] | -24.7[1] | – |
FeCl2 (ao) | – | -279.1[1] | – | – |
FeCl2 (cr) 2 hydrate | -953.1[1] | – | – | – |
FeCl2 (cr) 4 hydrate | -1549.3[1] | – | – | – |
MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
MnO2 (am) precipitated | -502.5[1] | – | – | – |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (am):Amorphous 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 |
---|---|---|---|---|
FeCl3 (cr) | -399.49[1] | -334.00[1] | 142.3[1] | 96.65[1] |
FeCl3 (g) | -254.0[1] | – | – | – |
FeCl3 (ai) | -550.2[1] | -398.3[1] | -146.4[1] | – |
FeCl3 (ao) | – | -404.5[1] | – | – |
FeCl3 (cr) 6 hydrate | -2223.8[1] | – | – | – |
Fe3O4 (cr) | -1118.4[1] | -1015.4[1] | 146.4[1] | 143.43[1] |
(cr) α | 0[1] | 0[1] | 32.01[1] | 26.32[1] |
(cr) β | – | – | 34.39[1] | 26.53[1] |
(cr) γ | 1.55[1] | 1.42[1] | 32.43[1] | 27.57[1] |
(g) | 280.7[1] | 238.5[1] | 173.70[1] | 20.79[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (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°, -341.79 kJ · mol−1
- ^ ΔfG°, -302.30 kJ · mol−1
- ^ S°, 117.95 J · K−1 · mol−1
- ^ Cp°, 76.65 J · K−1 · mol−1
- ^ ΔfH°, -148.5 kJ · mol−1
- ^ ΔfH°, -423.4 kJ · mol−1
- ^ ΔfG°, -341.34 kJ · mol−1
- ^ S°, -24.7 J · K−1 · mol−1
- ^ ΔfG°, -279.1 kJ · mol−1
- ^ ΔfH°, -953.1 kJ · mol−1
- ^ ΔfH°, -1549.3 kJ · mol−1
- ^ ΔfH°, -520.03 kJ · mol−1
- ^ ΔfG°, -465.14 kJ · mol−1
- ^ S°, 53.05 J · K−1 · mol−1
- ^ Cp°, 54.14 J · K−1 · mol−1
- ^ ΔfH°, -502.5 kJ · mol−1
- ^ ΔfH°, -399.49 kJ · mol−1
- ^ ΔfG°, -334.00 kJ · mol−1
- ^ S°, 142.3 J · K−1 · mol−1
- ^ Cp°, 96.65 J · K−1 · mol−1
- ^ ΔfH°, -254.0 kJ · mol−1
- ^ ΔfH°, -550.2 kJ · mol−1
- ^ ΔfG°, -398.3 kJ · mol−1
- ^ S°, -146.4 J · K−1 · mol−1
- ^ ΔfG°, -404.5 kJ · mol−1
- ^ ΔfH°, -2223.8 kJ · mol−1
- ^ ΔfH°, -1118.4 kJ · mol−1
- ^ ΔfG°, -1015.4 kJ · mol−1
- ^ S°, 146.4 J · K−1 · mol−1
- ^ Cp°, 143.43 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 32.01 J · K−1 · mol−1
- ^ Cp°, 26.32 J · K−1 · mol−1
- ^ S°, 34.39 J · K−1 · mol−1
- ^ Cp°, 26.53 J · K−1 · mol−1
- ^ ΔfH°, 1.55 kJ · mol−1
- ^ ΔfG°, 1.42 kJ · mol−1
- ^ S°, 32.43 J · K−1 · mol−1
- ^ Cp°, 27.57 J · K−1 · mol−1
- ^ ΔfH°, 280.7 kJ · mol−1
- ^ ΔfG°, 238.5 kJ · mol−1
- ^ S°, 173.70 J · K−1 · mol−1
- ^ Cp°, 20.79 J · K−1 · mol−1