4H2S + 4MgCO3 🔥→ MgSO4 + 3MgS + 4CO + 4H2O
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The reaction of hydrogen sulfide and magnesium carbonate yields magnesium sulfate, magnesium sulfide, carbon monoxide, 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 hydrogen sulfide and magnesium carbonate
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 magnesium carbonate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
H2S | Hydrogen sulfide | 4 | Reducing | Reducing |
MgCO3 | Magnesium carbonate | 4 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
MgSO4 | Magnesium sulfate | 1 | Oxidized | – |
MgS | Magnesium sulfide | 3 | – | – |
CO | Carbon monoxide | 4 | Reduced | – |
H2O | Water | 4 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of hydrogen sulfide and magnesium carbonate◆
ΔrG 489.5 kJ/mol K 0.18 × 10−85 pK 85.76
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 | 557.4 | 489.5 | 227.0 | 211.89 |
per 1 mol of | 139.3 | 122.4 | 56.75 | 52.972 |
per 1 mol of | 139.3 | 122.4 | 56.75 | 52.972 |
per 1 mol of | 557.4 | 489.5 | 227.0 | 211.89 |
per 1 mol of | 185.8 | 163.2 | 75.67 | 70.630 |
per 1 mol of | 139.3 | 122.4 | 56.75 | 52.972 |
per 1 mol of | 139.3 | 122.4 | 56.75 | 52.972 |
Changes in aqueous solution (1)
- Reaction of hydrogen sulfide and magnesium carbonate◆
ΔrG 437.6 kJ/mol K 0.22 × 10−76 pK 76.66
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 | 542.5 | 437.6 | 357 | – |
per 1 mol of | 135.6 | 109.4 | 89.3 | – |
per 1 mol of | 135.6 | 109.4 | 89.3 | – |
per 1 mol of | 542.5 | 437.6 | 357 | – |
per 1 mol of | 180.8 | 145.9 | 119 | – |
per 1 mol of | 135.6 | 109.4 | 89.3 | – |
per 1 mol of | 135.6 | 109.4 | 89.3 | – |
Changes in aqueous solution (2)
- Reaction of hydrogen sulfide and magnesium carbonate◆
ΔrG 506.7 kJ/mol K 0.17 × 10−88 pK 88.77
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 | 500.7 | 506.7 | −16 | – |
per 1 mol of | 125.2 | 126.7 | −4.0 | – |
per 1 mol of | 125.2 | 126.7 | −4.0 | – |
per 1 mol of | 500.7 | 506.7 | −16 | – |
per 1 mol of | 166.9 | 168.9 | −5.3 | – |
per 1 mol of | 125.2 | 126.7 | −4.0 | – |
per 1 mol of | 125.2 | 126.7 | −4.0 | – |
Changes in aqueous solution (3)
- Reaction of hydrogen sulfide and magnesium carbonate◆
ΔrG 424.9 kJ/mol K 0.36 × 10−74 pK 74.44
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 | 562.6 | 424.9 | 467 | – |
per 1 mol of | 140.7 | 106.2 | 117 | – |
per 1 mol of | 140.7 | 106.2 | 117 | – |
per 1 mol of | 562.6 | 424.9 | 467 | – |
per 1 mol of | 187.5 | 141.6 | 156 | – |
per 1 mol of | 140.7 | 106.2 | 117 | – |
per 1 mol of | 140.7 | 106.2 | 117 | – |
Changes in aqueous solution (4)
- Reaction of hydrogen sulfide and magnesium carbonate◆
ΔrG 494.0 kJ/mol K 0.29 × 10−86 pK 86.55
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 | 520.8 | 494.0 | 95 | – |
per 1 mol of | 130.2 | 123.5 | 24 | – |
per 1 mol of | 130.2 | 123.5 | 24 | – |
per 1 mol of | 520.8 | 494.0 | 95 | – |
per 1 mol of | 173.6 | 164.7 | 32 | – |
per 1 mol of | 130.2 | 123.5 | 24 | – |
per 1 mol of | 130.2 | 123.5 | 24 | – |
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] | – |
MgCO3 (cr) | -1095.8[1] | -1012.1[1] | 65.7[1] | 75.52[1] |
MgCO3 (cr) 3 hydrate | – | -1726.1[1] | – | – |
MgCO3 (cr) 5 hydrate | – | -2199.2[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 |
---|---|---|---|---|
MgSO4 (cr) | -1284.9[1] | -1170.6[1] | 91.6[1] | 96.48[1] |
MgSO4 (ai) | -1376.12[1] | -1199.5[1] | -118.0[1] | – |
MgSO4 (ao) | -1356.0[1] | -1212.21[1] | -7.1[1] | – |
MgSO4 (cr) 1 hydrate | -1602.1[1] | -1428.7[1] | 126.4[1] | – |
MgSO4 (am) 1 hydrate | -1574.9[1] | -1404.9[1] | 138.1[1] | – |
MgSO4 (cr) 2 hydrate | -1896.2[1] | – | – | – |
MgSO4 (cr) 4 hydrate | -2496.6[1] | – | – | – |
MgSO4 (cr) 6 hydrate | -3087.0[1] | -2631.8[1] | 348.1[1] | 348.11[1] |
MgSO4 (cr) 7 hydrate | -3388.71[1] | -2871.5[1] | 372[1] | – |
MgS (cr) | -346.0[1] | -341.8[1] | 50.33[1] | 45.56[1] |
CO (g) | -110.525[1] | -137.168[1] | 197.674[1] | 29.142[1] |
CO (ao) | -120.96[1] | -119.90[1] | 104.6[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, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (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°, -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°, -1095.8 kJ · mol−1
- ^ ΔfG°, -1012.1 kJ · mol−1
- ^ S°, 65.7 J · K−1 · mol−1
- ^ Cp°, 75.52 J · K−1 · mol−1
- ^ ΔfG°, -1726.1 kJ · mol−1
- ^ ΔfG°, -2199.2 kJ · mol−1
- ^ ΔfH°, -1284.9 kJ · mol−1
- ^ ΔfG°, -1170.6 kJ · mol−1
- ^ S°, 91.6 J · K−1 · mol−1
- ^ Cp°, 96.48 J · K−1 · mol−1
- ^ ΔfH°, -1376.12 kJ · mol−1
- ^ ΔfG°, -1199.5 kJ · mol−1
- ^ S°, -118.0 J · K−1 · mol−1
- ^ ΔfH°, -1356.0 kJ · mol−1
- ^ ΔfG°, -1212.21 kJ · mol−1
- ^ S°, -7.1 J · K−1 · mol−1
- ^ ΔfH°, -1602.1 kJ · mol−1
- ^ ΔfG°, -1428.7 kJ · mol−1
- ^ S°, 126.4 J · K−1 · mol−1
- ^ ΔfH°, -1574.9 kJ · mol−1
- ^ ΔfG°, -1404.9 kJ · mol−1
- ^ S°, 138.1 J · K−1 · mol−1
- ^ ΔfH°, -1896.2 kJ · mol−1
- ^ ΔfH°, -2496.6 kJ · mol−1
- ^ ΔfH°, -3087.0 kJ · mol−1
- ^ ΔfG°, -2631.8 kJ · mol−1
- ^ S°, 348.1 J · K−1 · mol−1
- ^ Cp°, 348.11 J · K−1 · mol−1
- ^ ΔfH°, -3388.71 kJ · mol−1
- ^ ΔfG°, -2871.5 kJ · mol−1
- ^ S°, 372. J · K−1 · mol−1
- ^ ΔfH°, -346.0 kJ · mol−1
- ^ ΔfG°, -341.8 kJ · mol−1
- ^ S°, 50.33 J · K−1 · mol−1
- ^ Cp°, 45.56 J · K−1 · mol−1
- ^ ΔfH°, -110.525 kJ · mol−1
- ^ ΔfG°, -137.168 kJ · mol−1
- ^ S°, 197.674 J · K−1 · mol−1
- ^ Cp°, 29.142 J · K−1 · mol−1
- ^ ΔfH°, -120.96 kJ · mol−1
- ^ ΔfG°, -119.90 kJ · mol−1
- ^ S°, 104.6 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