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6HCl + CsIO3 🔥→ 3Cl2 + CsI + 3H2O

The reaction of hydrogen chloride and caesium iodate yields chlorine, caesium iodide, 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 hardly oxidizable species and oxidizing species
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
HClHydrogen chloride6
Reducing
Hardly oxidizable
CsIO3Caesium iodate1
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cl2Chlorine3
Oxidized
CsICaesium iodide1
Reduced
H2OWater3

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen chloride and caesium iodate
ΔrG−46.4 kJ/mol
K1.35 × 108
pK−8.13
6HClGas + CsIO3Crystalline solid
🔥
3Cl2Gas + CsICrystalline solid + 3H2OLiquid
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
−46.4
per 1 mol of
−7.73
per 1 mol of
−46.4
per 1 mol of
−15.5
per 1 mol of
−46.4
per 1 mol of
−15.5

Changes in aqueous solution (1)

Reaction of hydrogen chloride and caesium iodate
ΔrG152.4 kJ/mol
K0.20 × 10−26
pK26.70
6HClIonized aqueous solution + CsIO3Ionized aqueous solution
🔥
3Cl2Gas + CsIIonized aqueous solution + 3H2OLiquid
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
311.5152.4532.7
per 1 mol of
51.9225.4088.78
per 1 mol of
311.5152.4532.7
per 1 mol of
103.850.80177.6
per 1 mol of
311.5152.4532.7
per 1 mol of
103.850.80177.6

Changes in aqueous solution (2)

Reaction of hydrogen chloride and caesium iodate
ΔrG173.2 kJ/mol
K0.45 × 10−30
pK30.34
6HClIonized aqueous solution + CsIO3Ionized aqueous solution
🔥
3Cl2Un-ionized aqueous solution + CsIIonized aqueous solution + 3H2OLiquid
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
241.3173.2227
per 1 mol of
40.2228.8737.8
per 1 mol of
241.3173.2227
per 1 mol of
80.4357.7375.7
per 1 mol of
241.3173.2227
per 1 mol of
80.4357.7375.7

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
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]
CsIO3 (cr)-433.8[1]
CsIO3 (ai)-479.5[1]-420.0[1]251.5[1]
* (g):Gas, (ai):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
Cl2 (g)0[1]0[1]223.066[1]33.907[1]
Cl2 (ao)-23.4[1]6.94[1]121[1]
CsI (cr)-346.60[1]-340.58[1]123.05[1]52.80[1]
CsI (g)-151.9[1]-191.2[1]275.29[1]37.45[1]
CsI (ai)-313.47[1]-343.59[1]244.3[1]-152.7[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]
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (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)