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3H2S + 4CsClO3 → 2Cs2SO4 + SO3 + 4HCl + H2O

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Reaction of hydrogen sulfide and caesium chlorate
3H2SHydrogen sulfide + 4CsClO3Caesium chlorate
⟶
2Cs2SO4Caesium sulfate + SO3Sulfur trioxide + 4HClHydrogen chloride + H2OWater

The reaction of hydrogen sulfide and caesium chlorate yields caesium sulfate, sulfur trioxide, hydrogen chloride, 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

Reaction of hydrogen sulfide and caesium chlorate
3H2SHydrogen sulfide + 4CsClO3Caesium chlorate
⟶
2Cs2SO4Caesium sulfate + SO3Sulfur trioxide + 4HClHydrogen chloride + H2OWater

General equation

Reaction of reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
⟶
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of hydrogen sulfide and caesium chlorate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2SHydrogen sulfide3
Reducing
Reducing
CsClO3Caesium chlorate4
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cs2SO4Caesium sulfate2
Oxidized
–
SO3Sulfur trioxide1
Oxidized
–
HClHydrogen chloride4
Reduced
–
H2OWater1
–
–

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen sulfide and caesium chlorate
◆
ΔrG−2307.0 kJ/mol
K1.48 × 10404
pK−404.17
3H2SGas + 4CsClO3Crystalline solid
⟶
2Cs2SO4Crystalline solid + SO3Liquid + 4HClGas + H2OLiquid
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
−2273.4−2307.0113.4–
per 1 mol of
−757.80−769.0037.80–
per 1 mol of
−568.35−576.7528.35–
per 1 mol of
−1136.7−1153.556.70–
per 1 mol of
−2273.4−2307.0113.4–
per 1 mol of
−568.35−576.7528.35–
per 1 mol of
−2273.4−2307.0113.4–

Changes in aqueous solution (1)

Reaction of hydrogen sulfide and caesium chlorate
◆
ΔrG−2366.29 kJ/mol
K3.60 × 10414
pK−414.56
3H2SUn-ionized aqueous solution + 4CsClO3Ionized aqueous solution
⟶
2Cs2SO4Ionized aqueous solution + SO3Crystalline solidβ + 4HClGas + H2OLiquid
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
−2393.1−2366.29−84–
per 1 mol of
−797.70−788.763−28–
per 1 mol of
−598.27−591.572−21–
per 1 mol of
−1196.5−1183.14−42–
per 1 mol of
−2393.1−2366.29−84–
per 1 mol of
−598.27−591.572−21–
per 1 mol of
−2393.1−2366.29−84–

Changes in aqueous solution (2)

Reaction of hydrogen sulfide and caesium chlorate
◆
ΔrG−2510.00 kJ/mol
K5.41 × 10439
pK−439.73
3H2SUn-ionized aqueous solution + 4CsClO3Ionized aqueous solution
⟶
2Cs2SO4Ionized aqueous solution + SO3Crystalline solidβ + 4HClIonized aqueous solution + H2OLiquid
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
−2692.5−2510.00−606–
per 1 mol of
−897.50−836.667−202–
per 1 mol of
−673.13−627.500−152–
per 1 mol of
−1346.3−1255.00−303–
per 1 mol of
−2692.5−2510.00−606–
per 1 mol of
−673.13−627.500−152–
per 1 mol of
−2692.5−2510.00−606–

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]–
CsClO3 (cr)-411.7[1]-307.9[1]156.1[1]–
CsClO3 (ai)-362.25[1]-299.97[1]295.4[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
Cs2SO4 (cr)-1443.02[1]-1323.58[1]211.92[1]134.89[1]
Cs2SO4 (g)-1102.9[1]–––
Cs2SO4 (ai)-1425.82[1]-1328.56[1]286.2[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]
HCl (g)-92.307[1]-95.299[1]186.908[1]29.12[1]
HCl (ai)-167.159[1]-131.228[1]56.5[1]-136.4[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, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)