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4H2S + 3SrSO4 🔥→ 4SO2 + 3SrS + 4H2O

The reaction of hydrogen sulfide and strontium sulfate yields sulfur dioxide, strontium sulfide, and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

General equation

Reaction of reducing species and reducible species
Reducing speciesReducing agent + Reducible speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2SHydrogen sulfide4
Reducing
Reducing
SrSO4Strontium sulfate3
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
SO2Sulfur dioxide4
Redoxed product
SrSStrontium sulfide3
H2OWater4

Thermodynamic changes

Changes in standard condition (1)

Reaction of hydrogen sulfide and strontium sulfate
ΔrG604.2 kJ/mol
K0.14 × 10−105
pK105.85
4H2SGas + 3SrSO4Crystalline solid
🔥
4SO2Gas + 3SrSCrystalline solid + 4H2OLiquid
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
694.0604.2303
per 1 mol of
173.5151.175.8
per 1 mol of
231.3201.4101
per 1 mol of
173.5151.175.8
per 1 mol of
231.3201.4101
per 1 mol of
173.5151.175.8

Changes in standard condition (2)

Reaction of hydrogen sulfide and strontium sulfate
4H2SGas + 3SrSO4Crystalline solidprecipitated
🔥
4SO2Gas + 3SrSCrystalline solid + 4H2OLiquid
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
684.1
per 1 mol of
171.0
per 1 mol of
228.0
per 1 mol of
171.0
per 1 mol of
228.0
per 1 mol of
171.0

Changes in aqueous solution (1)

Reaction of hydrogen sulfide and strontium sulfate
ΔrG581.3 kJ/mol
K0.14 × 10−101
pK101.84
4H2SUn-ionized aqueous solution + 3SrSO4Crystalline solid
🔥
4SO2Gas + 3SrSCrystalline solid + 4H2OLiquid
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
770.3581.3642
per 1 mol of
192.6145.3161
per 1 mol of
256.8193.8214
per 1 mol of
192.6145.3161
per 1 mol of
256.8193.8214
per 1 mol of
192.6145.3161

Changes in aqueous solution (2)

Reaction of hydrogen sulfide and strontium sulfate
ΔrG579.4 kJ/mol
K0.31 × 10−101
pK101.51
4H2SUn-ionized aqueous solution + 3SrSO4Crystalline solid
🔥
4SO2Un-ionized aqueous solution + 3SrSCrystalline solid + 4H2OLiquid
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
665.7579.4297
per 1 mol of
166.4144.874.3
per 1 mol of
221.9193.199.0
per 1 mol of
166.4144.874.3
per 1 mol of
221.9193.199.0
per 1 mol of
166.4144.874.3

Changes in aqueous solution (3)

Reaction of hydrogen sulfide and strontium sulfate
4H2SUn-ionized aqueous solution + 3SrSO4Crystalline solidprecipitated
🔥
4SO2Gas + 3SrSCrystalline solid + 4H2OLiquid
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
760.4
per 1 mol of
190.1
per 1 mol of
253.5
per 1 mol of
190.1
per 1 mol of
253.5
per 1 mol of
190.1

Changes in aqueous solution (4)

Reaction of hydrogen sulfide and strontium sulfate
4H2SUn-ionized aqueous solution + 3SrSO4Crystalline solidprecipitated
🔥
4SO2Un-ionized aqueous solution + 3SrSCrystalline solid + 4H2OLiquid
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
655.8
per 1 mol of
163.9
per 1 mol of
218.6
per 1 mol of
163.9
per 1 mol of
218.6
per 1 mol of
163.9

Thermodynamic data of reactants

Chemical formulaStandard 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]
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):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard 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
SO2 (l)-320.5[1]
SO2 (g)-296.830[1]-300.194[1]248.22[1]39.87[1]
SO2 (ao)-322.980[1]-300.676[1]161.9[1]
SrS (cr)-472.4[1]-467.8[1]68.2[1]48.70[1]
SrS (g)109[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]
* (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid

References

List of references

  1. 1