2SrSO4 🔥⚡→ 2Sr + O2↑ + 2SO3
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- Molten salt electrolysis of strontium sulfate
Molten salt electrolysis of strontium sulfate yields , , and sulfur trioxide (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 strontium sulfate
General equation
- Molten salt electrolysis
- SaltSelf redox agent🔥⚡⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Molten salt electrolysis of strontium sulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrSO4 | Strontium sulfate | 2 | Self redox agent | Salt |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 2 | Reduced | – | ||
| 1 | Oxidized | – | ||
| SO3 | Sulfur trioxide | 2 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Molten salt electrolysis of strontium sulfate◆
ΔrG 1934.3 kJ/mol K 0.13 × 10−338 pK 338.87
| 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 | 2024.1 | 1934.3 | 303 | – |
per 1 mol of | 1012.0 | 967.15 | 152 | – |
| 1012.0 | 967.15 | 152 | – | |
| 2024.1 | 1934.3 | 303 | – | |
per 1 mol of | 1012.0 | 967.15 | 152 | – |
Changes in standard condition (2)
- Molten salt electrolysis of strontium sulfate
| 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 | 2017.5 | – | – | – |
per 1 mol of | 1008.8 | – | – | – |
| 1008.8 | – | – | – | |
| 2017.5 | – | – | – | |
per 1 mol of | 1008.8 | – | – | – |
Changes in aqueous solution (1)
- Molten salt electrolysis of strontium sulfate◆
ΔrG 1933.4 kJ/mol K 0.19 × 10−338 pK 338.72
| 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 | 1997.2 | 1933.4 | 217 | – |
per 1 mol of | 998.60 | 966.70 | 109 | – |
| 998.60 | 966.70 | 109 | – | |
| 1997.2 | 1933.4 | 217 | – | |
per 1 mol of | 998.60 | 966.70 | 109 | – |
Changes in aqueous solution (2)
- Molten salt electrolysis of strontium sulfate◆
ΔrG 1949.8 kJ/mol K 0.26 × 10−341 pK 341.59
| 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 | 1985.5 | 1949.8 | 123 | – |
per 1 mol of | 992.75 | 974.90 | 61.5 | – |
| 992.75 | 974.90 | 61.5 | – | |
| 1985.5 | 1949.8 | 123 | – | |
per 1 mol of | 992.75 | 974.90 | 61.5 | – |
Changes in aqueous solution (3)
- Molten salt electrolysis of strontium sulfate
| 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 | 1990.6 | – | – | – |
per 1 mol of | 995.30 | – | – | – |
| 995.30 | – | – | – | |
| 1990.6 | – | – | – | |
per 1 mol of | 995.30 | – | – | – |
Changes in aqueous solution (4)
- Molten salt electrolysis of strontium sulfate
| 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 | 1978.9 | – | – | – |
per 1 mol of | 989.45 | – | – | – |
| 989.45 | – | – | – | |
| 1978.9 | – | – | – | |
per 1 mol of | 989.45 | – | – | – |
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 |
|---|---|---|---|---|
| SrSO4 (cr) | -1453.1[1] | -1340.9[1] | 117[1] | – |
| SrSO4 (cr) precipitated | -1449.8[1] | – | – | – |
| SrSO4 (ai) | -1455.07[1] | -1304.00[1] | -12.6[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) α | 0[1] | 0[1] | 52.3[1] | 26.4[1] |
| (g) | 164.4[1] | 130.9[1] | 164.62[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] | – |
| SO3 (cr) β | -454.51[1] | -374.21[1] | 70.7[1] | – |
| SO3 (l) | -441.04[1] | -373.75[1] | 113.8[1] | – |
| SO3 (g) | -395.72[1] | -371.06[1] | 256.76[1] | 50.67[1] |
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution, (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°, -1453.1 kJ · mol−1
- ^ ΔfG°, -1340.9 kJ · mol−1
- ^ S°, 117. J · K−1 · mol−1
- ^ ΔfH°, -1449.8 kJ · mol−1
- ^ ΔfH°, -1455.07 kJ · mol−1
- ^ ΔfG°, -1304.00 kJ · mol−1
- ^ S°, -12.6 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 52.3 J · K−1 · mol−1
- ^ Cp°, 26.4 J · K−1 · mol−1
- ^ ΔfH°, 164.4 kJ · mol−1
- ^ ΔfG°, 130.9 kJ · mol−1
- ^ S°, 164.62 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°, -454.51 kJ · mol−1
- ^ ΔfG°, -374.21 kJ · mol−1
- ^ S°, 70.7 J · K−1 · mol−1
- ^ ΔfH°, -441.04 kJ · mol−1
- ^ ΔfG°, -373.75 kJ · mol−1
- ^ S°, 113.8 J · K−1 · mol−1
- ^ ΔfH°, -395.72 kJ · mol−1
- ^ ΔfG°, -371.06 kJ · mol−1
- ^ S°, 256.76 J · K−1 · mol−1
- ^ Cp°, 50.67 J · K−1 · mol−1