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5H2S + 6CsNO3 → 2SO2 + 3N2O3 + 3Cs2S + 5H2O

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Reaction of hydrogen sulfide and caesium nitrate
5H2SHydrogen sulfide + 6CsNO3Caesium nitrate
⟶
2SO2Sulfur dioxide + 3N2O3Dinitrogen trioxide + 3Cs2SCaesium sulfide + 5H2OWater

The reaction of hydrogen sulfide and caesium nitrate yields sulfur dioxide, dinitrogen trioxide, caesium 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

Reaction of hydrogen sulfide and caesium nitrate
5H2SHydrogen sulfide + 6CsNO3Caesium nitrate
⟶
2SO2Sulfur dioxide + 3N2O3Dinitrogen trioxide + 3Cs2SCaesium sulfide + 5H2OWater

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 nitrate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2SHydrogen sulfide5
Reducing
Reducing
CsNO3Caesium nitrate6
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
SO2Sulfur dioxide2
Oxidized
–
N2O3Dinitrogen trioxide3
Reduced
–
Cs2SCaesium sulfide3
–
–
H2OWater5
–
–

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen sulfide and caesium nitrate
5H2SGas + 6CsNO3Crystalline solid
⟶
2SO2Gas + 3N2O3Gas + 3Cs2SCrystalline solid + 5H2OLiquid
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
287.9–––
per 1 mol of
57.58–––
per 1 mol of
47.98–––
per 1 mol of
143.9–––
95.97–––
per 1 mol of
95.97–––
per 1 mol of
57.58–––

Changes in aqueous solution (1)

Reaction of hydrogen sulfide and caesium nitrate
◆
ΔrG−303.8 kJ/mol
K1.67 × 1053
pK−53.22
5H2SUn-ionized aqueous solution + 6CsNO3Ionized aqueous solution
⟶
2SO2Gas + 3N2O3Gas + 3Cs2SIonized aqueous solution + 5H2OLiquid
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
−230.4−303.8255–
per 1 mol of
−46.08−60.7651.0–
per 1 mol of
−38.40−50.6342.5–
per 1 mol of
−115.2−151.9128–
−76.80−101.385.0–
per 1 mol of
−76.80−101.385.0–
per 1 mol of
−46.08−60.7651.0–

Changes in aqueous solution (2)

Reaction of hydrogen sulfide and caesium nitrate
◆
ΔrG−304.7 kJ/mol
K2.41 × 1053
pK−53.38
5H2SUn-ionized aqueous solution + 6CsNO3Ionized aqueous solution
⟶
2SO2Un-ionized aqueous solution + 3N2O3Gas + 3Cs2SIonized aqueous solution + 5H2OLiquid
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
−282.7−304.783–
per 1 mol of
−56.54−60.9417–
per 1 mol of
−47.12−50.7814–
per 1 mol of
−141.3−152.342–
−94.23−101.628–
per 1 mol of
−94.23−101.628–
per 1 mol of
−56.54−60.9417–

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]–
CsNO3 (cr)-505.97[1]-406.54[1]155.2[1]–
CsNO3 (g)-374.0[1]–––
CsNO3 (ai)-465.64[1]-403.27[1]279.5[1]-99[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]–
N2O3 (l)50.29[1]–––
N2O3 (g)83.72[1]139.46[1]312.28[1]65.61[1]
Cs2S (cr)-359.8[1]–––
Cs2S (ai)-483.7[1]-498.3[1]251.5[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, (ai):Ionized aqueous solution

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)