You-iggy
  1. Home
  2. Chemical reactions
  3. 2H2S + 5CdCO3 🔥→ 2CdSO4 + 3Cd + 5CO + 2H2O

2H2S + 5CdCO3 🔥→ 2CdSO4 + 3Cd + 5CO + 2H2O

Last updated:
Reaction of hydrogen sulfide and cadmium carbonate
2H2SHydrogen sulfide + 5CdCO3Cadmium carbonate
🔥
⟶
2CdSO4Cadmium sulfate + 3CdCadmium + 5COCarbon monoxide + 2H2OWater

The reaction of hydrogen sulfide and cadmium carbonate yields cadmium sulfate, cadmium, carbon monoxide, 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 cadmium carbonate
2H2SHydrogen sulfide + 5CdCO3Cadmium carbonate
🔥
⟶
2CdSO4Cadmium sulfate + 3CdCadmium + 5COCarbon monoxide + 2H2OWater

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 cadmium carbonate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2SHydrogen sulfide2
Reducing
Reducing
CdCO3Cadmium carbonate5
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
CdSO4Cadmium sulfate2
Oxidized
–
CdCadmium3
Reduced
–
COCarbon monoxide5
Reduced
–
H2OWater2
–
–

Thermodynamic changes

Changes in standard condition (1)

Reaction of hydrogen sulfide and cadmium carbonate
◆
ΔrG608.6 kJ/mol
K0.24 × 10−106
pK106.62
2H2SGas + 5CdCO3Crystalline solid
🔥
⟶
2CdSO4Crystalline solid + 3CdCrystalline solidγ + 5COGas + 2H2OLiquid
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
803.4608.6655.5–
per 1 mol of
401.7304.3327.8–
per 1 mol of
160.7121.7131.1–
per 1 mol of
401.7304.3327.8–
per 1 mol of
267.8202.9218.5–
per 1 mol of
160.7121.7131.1–
per 1 mol of
401.7304.3327.8–

Changes in standard condition (2)

Reaction of hydrogen sulfide and cadmium carbonate
◆
ΔrG606.8 kJ/mol
K0.49 × 10−106
pK106.31
2H2SGas + 5CdCO3Crystalline solid
🔥
⟶
2CdSO4Crystalline solid + 3CdCrystalline solidα + 5COGas + 2H2OLiquid
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
801.6606.8655.5–
per 1 mol of
400.8303.4327.8–
per 1 mol of
160.3121.4131.1–
per 1 mol of
400.8303.4327.8–
per 1 mol of
267.2202.3218.5–
per 1 mol of
160.3121.4131.1–
per 1 mol of
400.8303.4327.8–

Changes in aqueous solution (1)

Reaction of hydrogen sulfide and cadmium carbonate
◆
ΔrG597.1 kJ/mol
K0.25 × 10−104
pK104.61
2H2SUn-ionized aqueous solution + 5CdCO3Crystalline solid
🔥
⟶
2CdSO4Crystalline solid + 3CdCrystalline solidγ + 5COGas + 2H2OLiquid
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
841.6597.1825–
per 1 mol of
420.8298.6413–
per 1 mol of
168.3119.4165–
per 1 mol of
420.8298.6413–
per 1 mol of
280.5199.0275–
per 1 mol of
168.3119.4165–
per 1 mol of
420.8298.6413–

Changes in aqueous solution (2)

Reaction of hydrogen sulfide and cadmium carbonate
◆
ΔrG683.5 kJ/mol
K0.18 × 10−119
pK119.74
2H2SUn-ionized aqueous solution + 5CdCO3Crystalline solid
🔥
⟶
2CdSO4Crystalline solid + 3CdCrystalline solidγ + 5COUn-ionized aqueous solution + 2H2OLiquid
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
789.4683.5360–
per 1 mol of
394.7341.8180–
per 1 mol of
157.9136.772.0–
per 1 mol of
394.7341.8180–
per 1 mol of
263.1227.8120–
per 1 mol of
157.9136.772.0–
per 1 mol of
394.7341.8180–

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]–
CdCO3 (cr)-750.6[1]-669.4[1]92.5[1]–
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid

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
CdSO4 (cr)-933.28[1]-822.72[1]123.039[1]99.58[1]
CdSO4 (ai)-985.16[1]-822.13[1]-53.1[1]–
CdSO4 (cr)
1 hydrate
-1239.55[1]-1068.73[1]154.030[1]134.56[1]
CdSO4 (cr)
8/3 hydrate
-1729.4[1]-1465.141[1]229.630[1]213.26[1]
Cd (cr)
γ
0[1]0[1]51.76[1]25.98[1]
Cd (cr)
α
-0.59[1]-0.59[1]51.76[1]–
Cd (g)112.01[1]77.41[1]167.746[1]20.786[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, (g):Gas, (ao):Un-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)