10Na + Rb2SO4 → Na2S + 4Na2O + 2Rb
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- Reaction of and rubidium sulfate
The reaction of and rubidium sulfate yields sodium sulfide, sodium oxide, 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 rubidium sulfate
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 rubidium sulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 10 | Reducing | Reducing | ||
| Rb2SO4 | Rubidium sulfate | 1 | Oxidizing | Reducible |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Na2S | Sodium sulfide | 1 | Redoxed product | – |
| Na2O | Sodium oxide | 4 | Oxidized | – |
| 2 | Reduced | – |
Thermodynamic changes
Changes in standard condition
- Reaction of and rubidium sulfate◆
ΔrG −534.8 kJ/mol K 4.93 × 1093 pK −93.69
| 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 | −586.1 | −534.8 | −172.0 | – |
| −58.61 | −53.48 | −17.20 | – | |
per 1 mol of | −586.1 | −534.8 | −172.0 | – |
per 1 mol of | −586.1 | −534.8 | −172.0 | – |
per 1 mol of | −146.5 | −133.7 | −43.00 | – |
| −293.1 | −267.4 | −86.00 | – |
Changes in aqueous solution
- Reaction of and rubidium sulfate◆
ΔrG −627.4 kJ/mol K 8.24 × 10109 pK −109.92
| 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 | −692.6 | −627.4 | −218.2 | – |
| −69.26 | −62.74 | −21.82 | – | |
per 1 mol of | −692.6 | −627.4 | −218.2 | – |
per 1 mol of | −692.6 | −627.4 | −218.2 | – |
per 1 mol of | −173.2 | −156.8 | −54.55 | – |
| −346.3 | −313.7 | −109.1 | – |
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] |
| Rb2SO4 (cr) | -1435.61[1] | -1316.89[1] | 197.44[1] | 134.06[1] |
| Rb2SO4 (g) | -1068.6[1] | – | – | – |
| Rb2SO4 (ai) | -1411.60[1] | -1312.50[1] | 263.2[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 |
|---|---|---|---|---|
| Na2S (cr) | -364.8[1] | -349.8[1] | 83.7[1] | – |
| Na2S (ai) | -447.3[1] | -438.1[1] | 103.3[1] | – |
| Na2S (cr) 4.5 hydrate | -1725.9[1] | – | – | – |
| Na2S (cr) 5 hydrate | -1886.6[1] | – | – | – |
| Na2S (cr) 9 hydrate | -3074.0[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] |
| (cr) | 0[1] | 0[1] | 76.78[1] | 31.062[1] |
| (g) | 80.88[1] | 53.06[1] | 170.089[1] | 20.786[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (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°, -1435.61 kJ · mol−1
- ^ ΔfG°, -1316.89 kJ · mol−1
- ^ S°, 197.44 J · K−1 · mol−1
- ^ Cp°, 134.06 J · K−1 · mol−1
- ^ ΔfH°, -1068.6 kJ · mol−1
- ^ ΔfH°, -1411.60 kJ · mol−1
- ^ ΔfG°, -1312.50 kJ · mol−1
- ^ S°, 263.2 J · K−1 · mol−1
- ^ ΔfH°, -364.8 kJ · mol−1
- ^ ΔfG°, -349.8 kJ · mol−1
- ^ S°, 83.7 J · K−1 · mol−1
- ^ ΔfH°, -447.3 kJ · mol−1
- ^ ΔfG°, -438.1 kJ · mol−1
- ^ S°, 103.3 J · K−1 · mol−1
- ^ ΔfH°, -1725.9 kJ · mol−1
- ^ ΔfH°, -1886.6 kJ · mol−1
- ^ ΔfH°, -3074.0 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°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 76.78 J · K−1 · mol−1
- ^ Cp°, 31.062 J · K−1 · mol−1
- ^ ΔfH°, 80.88 kJ · mol−1
- ^ ΔfG°, 53.06 kJ · mol−1
- ^ S°, 170.089 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1