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KCl + HClO3 → KClO3 + HCl↑

The reaction of potassium chloride and chloric acid yields potassium chlorate and hydrogen chloride. This reaction is an acid-base reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related categories

Reaction data

Chemical equation

General equation

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
KClPotassium chloride1
Brønsted base
Salt of volatile acid
HClO3Chloric acid1
Brønsted acid
Nonvolatile acid

Products

Chemical formulaNameCoefficientTypeType in general
equation
KClO3Potassium chlorate1
Conjugate base
Salt of non volatile acid
HClHydrogen chloride1
Conjugate acid
Volatile acid

Thermodynamic changes

Changes in standard condition (1)

Reaction of potassium chloride and chloric acid
ΔrG35.92 kJ/mol
K0.51 × 10−6
pK6.29
KClIonized aqueous solution + HClO3Ionized aqueous solution
KClO3Ionized aqueous solution + HClGas
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
74.8435.92130.4
per 1 mol of
74.8435.92130.4
per 1 mol of
74.8435.92130.4
per 1 mol of
74.8435.92130.4
per 1 mol of
74.8435.92130.4

Changes in standard condition (2)

Reaction of potassium chloride and chloric acid
ΔrG−0.01 kJ/mol
K1.00 × 100
pK−0.00
KClIonized aqueous solution + HClO3Ionized aqueous solution
KClO3Ionized aqueous solution + HClIonized aqueous solution
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
−0.01−0.010.0
per 1 mol of
−0.0100−0.01000.0
per 1 mol of
−0.0100−0.01000.0
per 1 mol of
−0.0100−0.01000.0
per 1 mol of
−0.0100−0.01000.0

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
KCl (cr)-436.747[1]-409.14[1]82.59[1]51.30[1]
KCl (g)-214.14[1]-233.0[1]239.10[1]36.48[1]
KCl (ai)-419.53[1]-414.49[1]159.0[1]-114.6[1]
HClO3 (ai)-103.97[1]-7.95[1]162.3[1]
* (cr):Crystalline solid, (g):Gas, (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
KClO3 (cr)-397.73[1]-296.25[1]143.1[1]100.25[1]
KClO3 (ai)-356.35[1]-291.22[1]264.8[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]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas

References

List of references

  1. 1