6Na + Ca(OH)2 🔥→ 2Na2O + 2NaH + Ca
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- Reaction of and calcium hydroxide
The reaction of and calcium hydroxide yields sodium oxide, sodium hydride, and (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 calcium hydroxide
General equation
- Reaction of reducing species and reducible species
- Reducing speciesReducing agent + Reducible speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and calcium hydroxide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 6 | Reducing | Reducing | ||
| Ca(OH)2 | Calcium hydroxide | 1 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na2O | Sodium oxide | 2 | Oxidized | – |
| NaH | Sodium hydride | 2 | Redoxed product | – |
| 1 | Reduced | – |
Thermodynamic changes
Changes in standard condition
- Reaction of and calcium hydroxide◆
ΔrG 80.65 kJ/mol K 0.74 × 10−14 pK 14.13
| 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 | 45.10 | 80.65 | −119.08 | −20.58 |
| 7.517 | 13.44 | −19.847 | −3.430 | |
per 1 mol of | 45.10 | 80.65 | −119.08 | −20.58 |
per 1 mol of | 22.55 | 40.33 | −59.540 | −10.29 |
per 1 mol of | 22.55 | 40.33 | −59.540 | −10.29 |
| 45.10 | 80.65 | −119.08 | −20.58 |
Changes in aqueous solution
- Reaction of and calcium hydroxide◆
ΔrG 80.65 kJ/mol K 0.74 × 10−14 pK 14.13
| 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 | 45.10 | 80.65 | −119.08 | −20.58 |
| 7.517 | 13.44 | −19.847 | −3.430 | |
per 1 mol of | 45.10 | 80.65 | −119.08 | −20.58 |
per 1 mol of | 22.55 | 40.33 | −59.540 | −10.29 |
per 1 mol of | 22.55 | 40.33 | −59.540 | −10.29 |
| 45.10 | 80.65 | −119.08 | −20.58 |
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] | 51.21[1] | 28.24[1] |
| (g) | 107.32[1] | 76.761[1] | 153.712[1] | 20.786[1] |
| Ca(OH)2 (cr) | -986.09[1] | -898.49[1] | 83.39[1] | 87.49[1] |
| Ca(OH)2 (g) | -544[1] | – | – | – |
| Ca(OH)2 (ai) | -1002.82[1] | -868.07[1] | -74.5[1] | – |
| Ca(OH)2 (cr) 2 hydrate | -1218.4[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 |
|---|---|---|---|---|
| Na2O (cr) | -414.22[1] | -375.46[1] | 75.06[1] | 69.12[1] |
| Na2O (g) | -35.6[1] | -52.3[1] | 261.2[1] | 55.2[1] |
| NaH (cr) | -56.275[1] | -33.46[1] | 40.016[1] | 36.401[1] |
| NaH (g) | 130.25[1] | 108.85[1] | 188.377[1] | 30.29[1] |
| (cr) α | 0[1] | 0[1] | 41.42[1] | 25.31[1] |
| (g) | 178.2[1] | 144.3[1] | 154.884[1] | 20.786[1] |
* (cr):Crystalline solid, (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°, 51.21 J · K−1 · mol−1
- ^ Cp°, 28.24 J · K−1 · mol−1
- ^ ΔfH°, 107.32 kJ · mol−1
- ^ ΔfG°, 76.761 kJ · mol−1
- ^ S°, 153.712 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, -986.09 kJ · mol−1
- ^ ΔfG°, -898.49 kJ · mol−1
- ^ S°, 83.39 J · K−1 · mol−1
- ^ Cp°, 87.49 J · K−1 · mol−1
- ^ ΔfH°, -544. kJ · mol−1
- ^ ΔfH°, -1002.82 kJ · mol−1
- ^ ΔfG°, -868.07 kJ · mol−1
- ^ S°, -74.5 J · K−1 · mol−1
- ^ ΔfH°, -1218.4 kJ · mol−1
- ^ ΔfH°, -414.22 kJ · mol−1
- ^ ΔfG°, -375.46 kJ · mol−1
- ^ S°, 75.06 J · K−1 · mol−1
- ^ Cp°, 69.12 J · K−1 · mol−1
- ^ ΔfH°, -35.6 kJ · mol−1
- ^ ΔfG°, -52.3 kJ · mol−1
- ^ S°, 261.2 J · K−1 · mol−1
- ^ Cp°, 55.2 J · K−1 · mol−1
- ^ ΔfH°, -56.275 kJ · mol−1
- ^ ΔfG°, -33.46 kJ · mol−1
- ^ S°, 40.016 J · K−1 · mol−1
- ^ Cp°, 36.401 J · K−1 · mol−1
- ^ ΔfH°, 130.25 kJ · mol−1
- ^ ΔfG°, 108.85 kJ · mol−1
- ^ S°, 188.377 J · K−1 · mol−1
- ^ Cp°, 30.29 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 41.42 J · K−1 · mol−1
- ^ Cp°, 25.31 J · K−1 · mol−1
- ^ ΔfH°, 178.2 kJ · mol−1
- ^ ΔfG°, 144.3 kJ · mol−1
- ^ S°, 154.884 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1