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H2 + HClO → HCl + H2O

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Reaction of hydrogen and hypochlorous acid
H2Hydrogen + HClOHypochlorous acid
⟶
HClHydrogen chloride + H2OWater

The reaction of hydrogen and hypochlorous acid yields 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 and hypochlorous acid
H2Hydrogen + HClOHypochlorous acid
⟶
HClHydrogen 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 and hypochlorous acid

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2Hydrogen1
Reducing
Reducing
HClOHypochlorous acid1
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
HClHydrogen chloride1
Reduced
–
H2OWater1
Oxidized
–

Thermodynamic changes

Changes in standard condition (1)

Reaction of hydrogen and hypochlorous acid
◆
ΔrG−270.1 kJ/mol
K2.09 × 1047
pK−47.32
H2Un-ionized aqueous solution + HClOUn-ionized aqueous solution
⟶
HClGas + 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
−253.0−270.1−462–
per 1 mol of
−253.0−270.1−462–
per 1 mol of
−253.0−270.1−462–
per 1 mol of
−253.0−270.1−462–
per 1 mol of
−253.0−270.1−462–

Changes in standard condition (2)

Reaction of hydrogen and hypochlorous acid
◆
ΔrG−306.1 kJ/mol
K4.23 × 1053
pK−53.63
H2Un-ionized aqueous solution + HClOUn-ionized aqueous solution
⟶
HClIonized 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
−327.9−306.1−593–
per 1 mol of
−327.9−306.1−593–
per 1 mol of
−327.9−306.1−593–
per 1 mol of
−327.9−306.1−593–
per 1 mol of
−327.9−306.1−593–

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
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]–
HClO (g)-78.7[1]-66.1[1]236.67[1]37.15[1]
HClO (ao)-120.9[1]-79.9[1]142[1]–
* (g):Gas, (ao):Un-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
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]
* (g):Gas, (ai):Ionized aqueous solution, (cr):Crystalline solid, (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)