2BaCO3 🔥⚡→ 2Ba + 3O2↑ + 2C
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- Molten salt electrolysis of barium carbonate
Molten salt electrolysis of barium carbonate yields , , and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Molten salt electrolysis of barium carbonate
General equation
- Molten salt electrolysis
- SaltSelf redox agent🔥⚡⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Molten salt electrolysis of barium carbonate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| BaCO3 | Barium carbonate | 2 | Self redox agent | Salt |
Products
Thermodynamic changes
Changes in standard condition (1)
- Molten salt electrolysis of barium carbonate◆
ΔrG 2275.2 kJ/mol K 0.25 × 10−398 pK 398.60
| 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 | 2432.6 | 2275.2 | 528.3 | −9.44 |
per 1 mol of | 1216.3 | 1137.6 | 264.1 | −4.72 |
| 1216.3 | 1137.6 | 264.1 | −4.72 | |
| 810.87 | 758.40 | 176.1 | −3.15 | |
| 1216.3 | 1137.6 | 264.1 | −4.72 |
Changes in standard condition (2)
- Molten salt electrolysis of barium carbonate◆
ΔrG 2281.0 kJ/mol K 0.24 × 10−399 pK 399.61
| 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 | 2436.4 | 2281.0 | 521.6 | −14.27 |
per 1 mol of | 1218.2 | 1140.5 | 260.8 | −7.135 |
| 1218.2 | 1140.5 | 260.8 | −7.135 | |
| 812.13 | 760.33 | 173.9 | −4.757 | |
| 1218.2 | 1140.5 | 260.8 | −7.135 |
Changes in aqueous solution (1)
- Molten salt electrolysis of barium carbonate◆
ΔrG 2275.2 kJ/mol K 0.25 × 10−398 pK 398.60
| 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 | 2432.6 | 2275.2 | 528.3 | −9.44 |
per 1 mol of | 1216.3 | 1137.6 | 264.1 | −4.72 |
| 1216.3 | 1137.6 | 264.1 | −4.72 | |
| 810.87 | 758.40 | 176.1 | −3.15 | |
| 1216.3 | 1137.6 | 264.1 | −4.72 |
Changes in aqueous solution (2)
- Molten salt electrolysis of barium carbonate◆
ΔrG 2324.4 kJ/mol K 0.61 × 10−407 pK 407.22 - 2BaCO3Crystalline solid2Crystalline solid + 3↑Un-ionized aqueous solution + 2Crystalline solidgraphite🔥⚡⟶
| 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 | 2397.5 | 2324.4 | 245.6 | – |
per 1 mol of | 1198.8 | 1162.2 | 122.8 | – |
| 1198.8 | 1162.2 | 122.8 | – | |
| 799.17 | 774.80 | 81.87 | – | |
| 1198.8 | 1162.2 | 122.8 | – |
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 |
|---|---|---|---|---|
| BaCO3 (cr) | -1216.3[1] | -1137.6[1] | 112.1[1] | 85.35[1] |
| BaCO3 (ai) | -1214.78[1] | -1088.59[1] | -47.3[1] | – |
* (cr):Crystalline solid, (ai):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 |
|---|---|---|---|---|
| (cr) | 0[1] | 0[1] | 62.8[1] | 28.07[1] |
| (g) | 180[1] | 146[1] | 170.243[1] | 20.786[1] |
| (g) | 0[1] | 0[1] | 205.138[1] | 29.355[1] |
| (ao) | -11.7[1] | 16.4[1] | 110.9[1] | – |
| (cr) graphite | 0[1] | 0[1] | 5.740[1] | 8.527[1] |
| (cr) diamond | 1.895[1] | 2.900[1] | 2.377[1] | 6.113[1] |
| (g) | 716.682[1] | 671.257[1] | 158.096[1] | 20.838[1] |
* (cr):Crystalline 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°, -1216.3 kJ · mol−1
- ^ ΔfG°, -1137.6 kJ · mol−1
- ^ S°, 112.1 J · K−1 · mol−1
- ^ Cp°, 85.35 J · K−1 · mol−1
- ^ ΔfH°, -1214.78 kJ · mol−1
- ^ ΔfG°, -1088.59 kJ · mol−1
- ^ S°, -47.3 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 62.8 J · K−1 · mol−1
- ^ Cp°, 28.07 J · K−1 · mol−1
- ^ ΔfH°, 180. kJ · mol−1
- ^ ΔfG°, 146. kJ · mol−1
- ^ S°, 170.243 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 205.138 J · K−1 · mol−1
- ^ Cp°, 29.355 J · K−1 · mol−1
- ^ ΔfH°, -11.7 kJ · mol−1
- ^ ΔfG°, 16.4 kJ · mol−1
- ^ S°, 110.9 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 5.740 J · K−1 · mol−1
- ^ Cp°, 8.527 J · K−1 · mol−1
- ^ ΔfH°, 1.895 kJ · mol−1
- ^ ΔfG°, 2.900 kJ · mol−1
- ^ S°, 2.377 J · K−1 · mol−1
- ^ Cp°, 6.113 J · K−1 · mol−1
- ^ ΔfH°, 716.682 kJ · mol−1
- ^ ΔfG°, 671.257 kJ · mol−1
- ^ S°, 158.096 J · K−1 · mol−1
- ^ Cp°, 20.838 J · K−1 · mol−1