3H2S + Sr3(PO4)2 → 2SrSO4 + 2PH3 + SrS
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The reaction of hydrogen sulfide and strontium phosphate yields strontium sulfate, , and strontium sulfide (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 hydrogen sulfide and strontium phosphate
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 hydrogen sulfide and strontium phosphate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| H2S | Hydrogen sulfide | 3 | Reducing | Reducing |
| Sr3(PO4)2 | Strontium phosphate | 1 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SrSO4 | Strontium sulfate | 2 | Oxidized | – |
| 2 | Reduced | – | ||
| SrS | Strontium sulfide | 1 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2893.6 | – | – | – |
per 1 mol of | −964.53 | – | – | – |
per 1 mol of | −2893.6 | – | – | – |
per 1 mol of | −1446.8 | – | – | – |
| −1446.8 | – | – | – | |
per 1 mol of | −2893.6 | – | – | – |
Changes in standard condition (2)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2887.0 | – | – | – |
per 1 mol of | −962.33 | – | – | – |
per 1 mol of | −2887.0 | – | – | – |
per 1 mol of | −1443.5 | – | – | – |
| −1443.5 | – | – | – | |
per 1 mol of | −2887.0 | – | – | – |
Changes in aqueous solution (1)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2836.4 | – | – | – |
per 1 mol of | −945.47 | – | – | – |
per 1 mol of | −2836.4 | – | – | – |
per 1 mol of | −1418.2 | – | – | – |
| −1418.2 | – | – | – | |
per 1 mol of | −2836.4 | – | – | – |
Changes in aqueous solution (2)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2866.2 | – | – | – |
per 1 mol of | −955.40 | – | – | – |
per 1 mol of | −2866.2 | – | – | – |
per 1 mol of | −1433.1 | – | – | – |
| −1433.1 | – | – | – | |
per 1 mol of | −2866.2 | – | – | – |
Changes in aqueous solution (3)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2829.8 | – | – | – |
per 1 mol of | −943.27 | – | – | – |
per 1 mol of | −2829.8 | – | – | – |
per 1 mol of | −1414.9 | – | – | – |
| −1414.9 | – | – | – | |
per 1 mol of | −2829.8 | – | – | – |
Changes in aqueous solution (4)
- Reaction of hydrogen sulfide and strontium phosphate
| 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 | −2859.6 | – | – | – |
per 1 mol of | −953.20 | – | – | – |
per 1 mol of | −2859.6 | – | – | – |
per 1 mol of | −1429.8 | – | – | – |
| −1429.8 | – | – | – | |
per 1 mol of | −2859.6 | – | – | – |
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 |
|---|---|---|---|---|
| H2S (g) | -20.63[1] | -33.56[1] | 205.79[1] | 34.23[1] |
| H2S (ao) | -39.7[1] | -27.83[1] | 121[1] | – |
| Sr3(PO4)2 (cr) | -412.29[1] | – | – | – |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline 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 |
|---|---|---|---|---|
| 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] | – |
| (g) | 5.4[1] | 13.4[1] | 210.23[1] | 37.11[1] |
| (ao) | -9.50[1] | 25.36[1] | 120.1[1] | – |
| SrS (cr) | -472.4[1] | -467.8[1] | 68.2[1] | 48.70[1] |
| SrS (g) | 109[1] | – | – | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (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°, -20.63 kJ · mol−1
- ^ ΔfG°, -33.56 kJ · mol−1
- ^ S°, 205.79 J · K−1 · mol−1
- ^ Cp°, 34.23 J · K−1 · mol−1
- ^ ΔfH°, -39.7 kJ · mol−1
- ^ ΔfG°, -27.83 kJ · mol−1
- ^ S°, 121. J · K−1 · mol−1
- ^ ΔfH°, -412.29 kJ · mol−1
- ^ 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°, 5.4 kJ · mol−1
- ^ ΔfG°, 13.4 kJ · mol−1
- ^ S°, 210.23 J · K−1 · mol−1
- ^ Cp°, 37.11 J · K−1 · mol−1
- ^ ΔfH°, -9.50 kJ · mol−1
- ^ ΔfG°, 25.36 kJ · mol−1
- ^ S°, 120.1 J · K−1 · mol−1
- ^ ΔfH°, -472.4 kJ · mol−1
- ^ ΔfG°, -467.8 kJ · mol−1
- ^ S°, 68.2 J · K−1 · mol−1
- ^ Cp°, 48.70 J · K−1 · mol−1
- ^ ΔfH°, 109. kJ · mol−1