2B2H6 + 3MnO2 → 4B + 3Mn + 6H2O
Last updated:
- Reaction of diborane(6) and manganese(IV) oxide
The reaction of diborane(6) and manganese(IV) oxide yields , , and water (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 manganese(IV) 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 manganese(IV) oxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| B2H6 | Diborane(6) | 2 | Reducing | Reducing |
| MnO2 | Manganese(IV) oxide | 3 | Oxidizing | Reducible |
Products
Thermodynamic changes
Changes in standard condition (1)
- Reaction of diborane(6) and manganese(IV) oxide◆
ΔrG −200.8 kJ/mol K 1.51 × 1035 pK −35.18
| 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 | −226.1 | −200.8 | −84.44 | 298.85 |
per 1 mol of | −113.0 | −100.4 | −42.22 | 149.43 |
per 1 mol of | −75.37 | −66.93 | −28.15 | 99.617 |
| −56.52 | −50.20 | −21.11 | 74.713 | |
| −75.37 | −66.93 | −28.15 | 99.617 | |
per 1 mol of | −37.68 | −33.47 | −14.07 | 49.808 |
Changes in standard condition (2)
- Reaction of diborane(6) 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 | – | – | −77.30 | 299.48 |
per 1 mol of | – | – | −38.65 | 149.74 |
per 1 mol of | – | – | −25.77 | 99.827 |
| – | – | −19.32 | 74.870 | |
| – | – | −25.77 | 99.827 | |
per 1 mol of | – | – | −12.88 | 49.913 |
Changes in standard condition (3)
- Reaction of diborane(6) and manganese(IV) oxide◆
ΔrG −196.5 kJ/mol K 2.66 × 1034 pK −34.43
| 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 | −221.4 | −196.5 | −83.18 | 302.60 |
per 1 mol of | −110.7 | −98.25 | −41.59 | 151.30 |
per 1 mol of | −73.80 | −65.50 | −27.73 | 100.87 |
| −55.35 | −49.13 | −20.80 | 75.650 | |
| −73.80 | −65.50 | −27.73 | 100.87 | |
per 1 mol of | −36.90 | −32.75 | −13.86 | 50.433 |
Changes in standard condition (4)
- Reaction of diborane(6) 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 | −210.9 | – | −101.35 | 302.37 |
per 1 mol of | −105.5 | – | −50.675 | 151.19 |
per 1 mol of | −70.30 | – | −33.783 | 100.79 |
| −52.73 | – | −25.337 | 75.593 | |
| −70.30 | – | −33.783 | 100.79 | |
per 1 mol of | −35.15 | – | −16.892 | 50.395 |
Changes in standard condition (5)
- Reaction of diborane(6) 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 | – | – | −94.21 | 303.00 |
per 1 mol of | – | – | −47.10 | 151.50 |
per 1 mol of | – | – | −31.40 | 101.00 |
| – | – | −23.55 | 75.750 | |
| – | – | −31.40 | 101.00 | |
per 1 mol of | – | – | −15.70 | 50.500 |
Changes in standard condition (6)
- Reaction of diborane(6) 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 | −206.2 | – | −100.09 | 306.12 |
per 1 mol of | −103.1 | – | −50.045 | 153.06 |
per 1 mol of | −68.73 | – | −33.363 | 102.04 |
| −51.55 | – | −25.023 | 76.530 | |
| −68.73 | – | −33.363 | 102.04 | |
per 1 mol of | −34.37 | – | −16.682 | 51.020 |
Changes in standard condition (7)
- Reaction of diborane(6) 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 | −278.7 | – | – | – |
per 1 mol of | −139.3 | – | – | – |
per 1 mol of | −92.90 | – | – | – |
| −69.67 | – | – | – | |
| −92.90 | – | – | – | |
per 1 mol of | −46.45 | – | – | – |
Changes in standard condition (8)
- Reaction of diborane(6) 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 | – | – | – | – |
Changes in standard condition (9)
- Reaction of diborane(6) 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 | −274.0 | – | – | – |
per 1 mol of | −137.0 | – | – | – |
per 1 mol of | −91.33 | – | – | – |
| −68.50 | – | – | – | |
| −91.33 | – | – | – | |
per 1 mol of | −45.67 | – | – | – |
Changes in standard condition (10)
- Reaction of diborane(6) 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 | −263.5 | – | – | – |
per 1 mol of | −131.8 | – | – | – |
per 1 mol of | −87.83 | – | – | – |
| −65.88 | – | – | – | |
| −87.83 | – | – | – | |
per 1 mol of | −43.92 | – | – | – |
Changes in standard condition (11)
- Reaction of diborane(6) 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 | – | – | – | – |
Changes in standard condition (12)
- Reaction of diborane(6) 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 | −258.8 | – | – | – |
per 1 mol of | −129.4 | – | – | – |
per 1 mol of | −86.27 | – | – | – |
| −64.70 | – | – | – | |
| −86.27 | – | – | – | |
per 1 mol of | −43.13 | – | – | – |
Changes in aqueous solution
- Reaction of diborane(6) and manganese(IV) oxide◆
ΔrG −200.8 kJ/mol K 1.51 × 1035 pK −35.18
| 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 | −226.1 | −200.8 | −84.44 | 298.85 |
per 1 mol of | −113.0 | −100.4 | −42.22 | 149.43 |
per 1 mol of | −75.37 | −66.93 | −28.15 | 99.617 |
| −56.52 | −50.20 | −21.11 | 74.713 | |
| −75.37 | −66.93 | −28.15 | 99.617 | |
per 1 mol of | −37.68 | −33.47 | −14.07 | 49.808 |
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] |
| MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
| MnO2 (am) precipitated | -502.5[1] | – | – | – |
* (g):Gas, (cr):Crystalline solid, (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 |
|---|---|---|---|---|
| (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] |
| (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] |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (cr):Crystalline solid, (am):Amorphous solid, (g):Gas, (l):Liquid
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°, -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°, 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°, 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
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1