Cu + Cu(OH)2 🔥→ Cu2O + H2O
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- Reaction of and copper(II) hydroxide
The reaction of and copper(II) hydroxide yields copper(I) oxide and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of and copper(II) hydroxide
General equation
- Reaction of oxidizable species and reducible species
- Oxidizable speciesReducing agent + Reducible speciesOxidizing agent🔥⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and copper(II) hydroxide
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
1 | Reducing | Oxidizable | ||
Cu(OH)2 | Copper(II) hydroxide | 1 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
Cu2O | Copper(I) oxide | 1 | Redoxed product | – |
H2O | Water | 1 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of and copper(II) hydroxide
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 | −4.6 | – | – | – |
−4.6 | – | – | – | |
per 1 mol of | −4.6 | – | – | – |
per 1 mol of | −4.6 | – | – | – |
per 1 mol of | −4.6 | – | – | – |
Changes in aqueous solution
- Reaction of and copper(II) hydroxide◆
ΔrG −134.1 kJ/mol K 3.11 × 1023 pK −23.49
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 | −59.2 | −134.1 | 250.8 | – |
−59.2 | −134.1 | 250.8 | – | |
per 1 mol of | −59.2 | −134.1 | 250.8 | – |
per 1 mol of | −59.2 | −134.1 | 250.8 | – |
per 1 mol of | −59.2 | −134.1 | 250.8 | – |
Thermodynamic data of reactants
Chemical formula | Standard 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 |
---|---|---|---|---|
(cr) | 0[1] | 0[1] | 33.150[1] | 24.435[1] |
(g) | 338.32[1] | 298.58[1] | 166.38[1] | 20.786[1] |
Cu(OH)2 (cr) | -449.8[1] | – | – | – |
Cu(OH)2 (ai) | -395.22[1] | -249.01[1] | -120.9[1] | – |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution
Thermodynamic data of products
Chemical formula | Standard 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 |
---|---|---|---|---|
Cu2O (cr) | -168.6[1] | -146.0[1] | 93.14[1] | 63.64[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, (l):Liquid, (g):Gas
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 33.150 J · K−1 · mol−1
- ^ Cp°, 24.435 J · K−1 · mol−1
- ^ ΔfH°, 338.32 kJ · mol−1
- ^ ΔfG°, 298.58 kJ · mol−1
- ^ S°, 166.38 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, -449.8 kJ · mol−1
- ^ ΔfH°, -395.22 kJ · mol−1
- ^ ΔfG°, -249.01 kJ · mol−1
- ^ S°, -120.9 J · K−1 · mol−1
- ^ ΔfH°, -168.6 kJ · mol−1
- ^ ΔfG°, -146.0 kJ · mol−1
- ^ S°, 93.14 J · K−1 · mol−1
- ^ Cp°, 63.64 J · K−1 · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1