H2S + Sr(CH3COO)2 → SrSO4 + 2CH4 + 2C
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- Reaction of hydrogen sulfide and strontium acetate
The reaction of hydrogen sulfide and strontium acetate yields strontium sulfate, , 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 hydrogen sulfide and strontium acetate
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 acetate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
H2S | Hydrogen sulfide | 1 | Reducing | Reducing |
Sr(CH3COO)2 | Strontium acetate | 1 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
SrSO4 | Strontium sulfate | 1 | Oxidized | – |
2 | Reduced | – | ||
2 | Reduced | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of hydrogen sulfide and strontium acetate
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 | −94.7 | – | – | – |
per 1 mol of | −94.7 | – | – | – |
per 1 mol of | −94.7 | – | – | – |
per 1 mol of | −94.7 | – | – | – |
−47.4 | – | – | – | |
−47.4 | – | – | – |
Changes in standard condition (2)
- Reaction of hydrogen sulfide and strontium acetate
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 | −90.9 | – | – | – |
per 1 mol of | −90.9 | – | – | – |
per 1 mol of | −90.9 | – | – | – |
per 1 mol of | −90.9 | – | – | – |
−45.5 | – | – | – | |
−45.5 | – | – | – |
Changes in standard condition (3)
- Reaction of hydrogen sulfide and strontium acetate
- H2SGas + Sr(CH3COO)2Crystalline solidSrSO4Crystalline solidprecipitated + 2Gas + 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 | −91.4 | – | – | – |
per 1 mol of | −91.4 | – | – | – |
per 1 mol of | −91.4 | – | – | – |
per 1 mol of | −91.4 | – | – | – |
−45.7 | – | – | – | |
−45.7 | – | – | – |
Changes in standard condition (4)
- Reaction of hydrogen sulfide and strontium acetate
- H2SGas + Sr(CH3COO)2Crystalline solidSrSO4Crystalline solidprecipitated + 2Gas + 2Crystalline soliddiamond⟶
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 | −87.6 | – | – | – |
per 1 mol of | −87.6 | – | – | – |
per 1 mol of | −87.6 | – | – | – |
per 1 mol of | −87.6 | – | – | – |
−43.8 | – | – | – | |
−43.8 | – | – | – |
Changes in aqueous solution (1)
- Reaction of hydrogen sulfide and strontium acetate
- H2SUn-ionized aqueous solution + Sr(CH3COO)2Aqueous solutionSrSO4Crystalline solid + 2Gas + 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 | −50.9 | – | – | – |
per 1 mol of | −50.9 | – | – | – |
per 1 mol of | −50.9 | – | – | – |
per 1 mol of | −50.9 | – | – | – |
−25.4 | – | – | – | |
−25.4 | – | – | – |
Changes in aqueous solution (2)
- Reaction of hydrogen sulfide and strontium acetate
- H2SUn-ionized aqueous solution + Sr(CH3COO)2Aqueous solutionSrSO4Crystalline solid + 2Un-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 | −79.4 | – | – | – |
per 1 mol of | −79.4 | – | – | – |
per 1 mol of | −79.4 | – | – | – |
per 1 mol of | −79.4 | – | – | – |
−39.7 | – | – | – | |
−39.7 | – | – | – |
Changes in aqueous solution (3)
- Reaction of hydrogen sulfide and strontium acetate
- H2SUn-ionized aqueous solution + Sr(CH3COO)2Aqueous solutionSrSO4Crystalline solidprecipitated + 2Gas + 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 | −47.6 | – | – | – |
per 1 mol of | −47.6 | – | – | – |
per 1 mol of | −47.6 | – | – | – |
per 1 mol of | −47.6 | – | – | – |
−23.8 | – | – | – | |
−23.8 | – | – | – |
Changes in aqueous solution (4)
- Reaction of hydrogen sulfide and strontium acetate
- H2SUn-ionized aqueous solution + Sr(CH3COO)2Aqueous solutionSrSO4Crystalline solidprecipitated + 2Un-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 | −76.1 | – | – | – |
per 1 mol of | −76.1 | – | – | – |
per 1 mol of | −76.1 | – | – | – |
per 1 mol of | −76.1 | – | – | – |
−38.0 | – | – | – | |
−38.0 | – | – | – |
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] | – |
Sr(CH3COO)2 (cr) | -1487.4[1] | – | – | – |
Sr(CH3COO)2 (aq) | -1512.1[1] | – | – | – |
Sr(CH3COO)2 (cr) 0.5 hydrate | -1631.8[1] | – | – | – |
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (aq):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 |
---|---|---|---|---|
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) | -74.81[1] | -50.72[1] | 186.264[1] | 35.309[1] |
(ao) | -89.04[1] | -34.33[1] | 83.7[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, (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°, -1487.4 kJ · mol−1
- ^ ΔfH°, -1512.1 kJ · mol−1
- ^ ΔfH°, -1631.8 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°, -74.81 kJ · mol−1
- ^ ΔfG°, -50.72 kJ · mol−1
- ^ S°, 186.264 J · K−1 · mol−1
- ^ Cp°, 35.309 J · K−1 · mol−1
- ^ ΔfH°, -89.04 kJ · mol−1
- ^ ΔfG°, -34.33 kJ · mol−1
- ^ S°, 83.7 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