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14Cu + 2HClO4 + 14H+ → 14Cu+ + Cl2↑ + 8H2O

Reaction of copper and perchloric acid under acidic condition
14CuCopper + 2HClO4Perchloric acid + 14H+Hydrogen ion
14Cu+Copper(I) ion + Cl2Chlorine + 8H2OWater

The reaction of copper, perchloric acid, and hydrogen ion yields copper(I) ion, chlorine, 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 copper and perchloric acid under acidic condition
14CuCopper + 2HClO4Perchloric acid + 14H+Hydrogen ion
14Cu+Copper(I) ion + Cl2Chlorine + 8H2OWater

General equation

Reaction of oxidizable species and oxidizing species under acidic condition
Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent
ProductOxidation product + ProductReduction product + H2ONon-redox product

Oxidation state of each atom

Reaction of copper and perchloric acid under acidic condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CuCopper14
Reducing
Oxidizable
HClO4Perchloric acid2
Oxidizing
Oxidizing under acidic condition
H+Hydrogen ion14
Hydrogen ion

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cu+Copper(I) ion14
Oxidized
Cl2Chlorine1
Reduced
H2OWater8
Water

Thermodynamic changes

Changes in standard condition (1)

Reaction of copper and perchloric acid under acidic condition
ΔrG−1180.27 kJ/mol
K5.95 × 10206
pK−206.77
14CuCrystalline solid + 2HClO4Ionized aqueous solution + 14H+Un-ionized aqueous solution
14Cu+Un-ionized aqueous solution + Cl2Gas + 8H2OLiquid
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
−1024.60−1180.27522.6
per 1 mol of
−73.1857−84.305037.33
per 1 mol of
−512.300−590.135261.3
per 1 mol of
Hydrogen ion
−73.1857−84.305037.33
per 1 mol of
Copper(I) ion
−73.1857−84.305037.33
per 1 mol of
−1024.60−1180.27522.6
per 1 mol of
−128.075−147.53465.33

Changes in standard condition (2)

Reaction of copper and perchloric acid under acidic condition
ΔrG−1173.33 kJ/mol
K3.62 × 10205
pK−205.56
14CuCrystalline solid + 2HClO4Ionized aqueous solution + 14H+Un-ionized aqueous solution
14Cu+Un-ionized aqueous solution + Cl2Un-ionized aqueous solution + 8H2OLiquid
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
−1048.0−1173.33421
per 1 mol of
−74.857−83.809330.1
per 1 mol of
−524.00−586.665211
per 1 mol of
Hydrogen ion
−74.857−83.809330.1
per 1 mol of
Copper(I) ion
−74.857−83.809330.1
per 1 mol of
−1048.0−1173.33421
per 1 mol of
−131.00−146.66652.6

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
Cu (cr)0[1]0[1]33.150[1]24.435[1]
Cu (g)338.32[1]298.58[1]166.38[1]20.786[1]
HClO4 (l)-40.58[1]
HClO4 (ai)-129.33[1]-8.52[1]182.0[1]
HClO4 (cr)
1 hydrate
-382.21[1]
HClO4 (l)
2 hydrate
-677.98[1]
H+ (g)1536.202[1]
H+ (ao)0[1]0[1]0[1]0[1]
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (ai):Ionized aqueous solution, (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
Cu+ (g)1089.986[1]
Cu+ (ao)71.67[1]49.98[1]40.6[1]
Cl2 (g)0[1]0[1]223.066[1]33.907[1]
Cl2 (ao)-23.4[1]6.94[1]121[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, (l):Liquid

References

List of references

  1. 1