10Cu + 2KClO3 + H2O → 5Cu2O + Cl2↑ + 2KOH
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- Reaction of and potassium chlorate under neutral condition
The reaction of , potassium chlorate, and water yields copper(I) oxide, , and potassium hydroxide (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 potassium chlorate under neutral condition
General equation
- Reaction of oxidizable species and oxidizing species under neutral condition
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H2ONon-redox agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and potassium chlorate under neutral condition
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
10 | Reducing | Oxidizable | ||
KClO3 | Potassium chlorate | 2 | Oxidizing | Oxidizing |
H2O | Water | 1 | – | Water |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
Cu2O | Copper(I) oxide | 5 | Oxidized | – |
1 | Reduced | – | ||
KOH | Potassium hydroxide | 2 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of and potassium chlorate under neutral condition◆
ΔrG −658.5 kJ/mol K 2.31 × 10115 pK −115.36
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 | −611.2 | −658.5 | 159.0 | −38.2 |
−61.12 | −65.85 | 15.90 | −3.82 | |
per 1 mol of | −305.6 | −329.3 | 79.50 | −19.1 |
per 1 mol of | −611.2 | −658.5 | 159.0 | −38.2 |
per 1 mol of | −122.2 | −131.7 | 31.80 | −7.64 |
−611.2 | −658.5 | 159.0 | −38.2 | |
per 1 mol of | −305.6 | −329.3 | 79.50 | −19.1 |
Changes in aqueous solution (1)
- Reaction of and potassium chlorate under neutral condition◆
ΔrG −791.4 kJ/mol K 4.44 × 10138 pK −138.65
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 | −809.2 | −791.4 | −59.0 | – |
−80.92 | −79.14 | −5.90 | – | |
per 1 mol of | −404.6 | −395.7 | −29.5 | – |
per 1 mol of | −809.2 | −791.4 | −59.0 | – |
per 1 mol of | −161.8 | −158.3 | −11.8 | – |
−809.2 | −791.4 | −59.0 | – | |
per 1 mol of | −404.6 | −395.7 | −29.5 | – |
Changes in aqueous solution (2)
- Reaction of and potassium chlorate under neutral condition◆
ΔrG −784.5 kJ/mol K 2.74 × 10137 pK −137.44
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 | −832.6 | −784.5 | −161 | – |
−83.26 | −78.45 | −16.1 | – | |
per 1 mol of | −416.3 | −392.3 | −80.5 | – |
per 1 mol of | −832.6 | −784.5 | −161 | – |
per 1 mol of | −166.5 | −156.9 | −32.2 | – |
−832.6 | −784.5 | −161 | – | |
per 1 mol of | −416.3 | −392.3 | −80.5 | – |
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] |
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] | – |
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, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid
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] |
(g) | 0[1] | 0[1] | 223.066[1] | 33.907[1] |
(ao) | -23.4[1] | 6.94[1] | 121[1] | – |
KOH (cr) | -424.764[1] | -379.08[1] | 78.9[1] | 64.9[1] |
KOH (g) | -231.0[1] | -232.6[1] | 238.3[1] | 49.20[1] |
KOH (ai) | -482.37[1] | -440.50[1] | 91.6[1] | -126.8[1] |
KOH (cr) 1 hydrate | -748.9[1] | -645.1[1] | 117.2[1] | – |
KOH (cr) 2 hydrate | -1051.0[1] | -887.3[1] | 150.6[1] | – |
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution, (ai):Ionized aqueous solution
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°, -397.73 kJ · mol−1
- ^ ΔfG°, -296.25 kJ · mol−1
- ^ S°, 143.1 J · K−1 · mol−1
- ^ Cp°, 100.25 J · K−1 · mol−1
- ^ ΔfH°, -356.35 kJ · mol−1
- ^ ΔfG°, -291.22 kJ · mol−1
- ^ S°, 264.8 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
- ^ 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°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 223.066 J · K−1 · mol−1
- ^ Cp°, 33.907 J · K−1 · mol−1
- ^ ΔfH°, -23.4 kJ · mol−1
- ^ ΔfG°, 6.94 kJ · mol−1
- ^ S°, 121. J · K−1 · mol−1
- ^ ΔfH°, -424.764 kJ · mol−1
- ^ ΔfG°, -379.08 kJ · mol−1
- ^ S°, 78.9 J · K−1 · mol−1
- ^ Cp°, 64.9 J · K−1 · mol−1
- ^ ΔfH°, -231.0 kJ · mol−1
- ^ ΔfG°, -232.6 kJ · mol−1
- ^ S°, 238.3 J · K−1 · mol−1
- ^ Cp°, 49.20 J · K−1 · mol−1
- ^ ΔfH°, -482.37 kJ · mol−1
- ^ ΔfG°, -440.50 kJ · mol−1
- ^ S°, 91.6 J · K−1 · mol−1
- ^ Cp°, -126.8 J · K−1 · mol−1
- ^ ΔfH°, -748.9 kJ · mol−1
- ^ ΔfG°, -645.1 kJ · mol−1
- ^ S°, 117.2 J · K−1 · mol−1
- ^ ΔfH°, -1051.0 kJ · mol−1
- ^ ΔfG°, -887.3 kJ · mol−1
- ^ S°, 150.6 J · K−1 · mol−1