Sr(CH3COO)2 🔥→ Sr(OH)2 + CH3COOH + 2C
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- Decomposition of strontium acetate
Decomposition of strontium acetate yields strontium hydroxide, acetic acid, and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Decomposition of strontium acetate
General equation
- Thermal decomposition with redox
- Thermally decomposable substanceSelf redox agent🔥⟶ ProductOxidation product + ProductReduction product
- Thermal decomposition of oxoacid salt with redox
- Oxoacid saltSelf redox agent🔥⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Decomposition of strontium acetate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Sr(CH3COO)2 | Strontium acetate | 1 | Self redox agent | Thermally decomposable Oxoacid salt |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Sr(OH)2 | Strontium hydroxide | 1 | – | – |
| CH3COOH | Acetic acid | 1 | – | – |
| 2 | Redoxed product | – |
Thermodynamic changes
Changes in standard condition (1)
- Decomposition of strontium acetate
| 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 | 43.9 | – | – | – |
per 1 mol of | 43.9 | – | – | – |
per 1 mol of | 43.9 | – | – | – |
per 1 mol of | 43.9 | – | – | – |
| 21.9 | – | – | – |
Changes in standard condition (2)
- Decomposition of strontium acetate
| 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 | 47.7 | – | – | – |
per 1 mol of | 47.7 | – | – | – |
per 1 mol of | 47.7 | – | – | – |
per 1 mol of | 47.7 | – | – | – |
| 23.9 | – | – | – |
Changes in aqueous solution (1)
- Decomposition of strontium acetate
- Sr(CH3COO)2Aqueous solutionSr(OH)2Crystalline solid + CH3COOHUn-ionized aqueous solution + 2Crystalline solidgraphite🔥⟶
| 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 | 67.3 | – | – | – |
per 1 mol of | 67.3 | – | – | – |
per 1 mol of | 67.3 | – | – | – |
per 1 mol of | 67.3 | – | – | – |
| 33.6 | – | – | – |
Changes in aqueous solution (2)
- Decomposition of strontium acetate
- Sr(CH3COO)2Aqueous solutionSr(OH)2Crystalline solid + CH3COOHIonized aqueous solution + 2Crystalline solidgraphite🔥⟶
| 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 | 67.1 | – | – | – |
per 1 mol of | 67.1 | – | – | – |
per 1 mol of | 67.1 | – | – | – |
per 1 mol of | 67.1 | – | – | – |
| 33.5 | – | – | – |
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 |
|---|---|---|---|---|
| Sr(CH3COO)2 (cr) | -1487.4[1] | – | – | – |
| Sr(CH3COO)2 (aq) | -1512.1[1] | – | – | – |
| Sr(CH3COO)2 (cr) 0.5 hydrate | -1631.8[1] | – | – | – |
* (cr):Crystalline solid, (aq):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 |
|---|---|---|---|---|
| Sr(OH)2 (cr) | -959.0[1] | – | – | – |
| Sr(OH)2 (g) | -565[1] | – | – | – |
| Sr(OH)2 (cr) 1 hydrate | -1264.8[1] | – | – | – |
| Sr(OH)2 (cr) 8 hydrate | -3352.2[1] | – | – | – |
| CH3COOH (l) | -484.5[1] | -389.9[1] | 159.8[1] | 124.3[1] |
| CH3COOH (g) | -432.25[1] | -374.0[1] | 282.5[1] | 66.5[1] |
| CH3COOH (ai) | -486.01[1] | -369.31[1] | 86.6[1] | -6.3[1] |
| CH3COOH (ao) | -485.76[1] | -396.46[1] | 178.7[1] | – |
| (cr) graphite | 0[1] | 0[1] | 5.740[1] | 8.527[1] |
| (cr) diamond | 1.895[1] | 2.900[1] | 2.377[1] | 6.113[1] |
| (g) | 716.682[1] | 671.257[1] | 158.096[1] | 20.838[1] |
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (ai):Ionized aqueous solution, (ao):Un-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°, -1487.4 kJ · mol−1
- ^ ΔfH°, -1512.1 kJ · mol−1
- ^ ΔfH°, -1631.8 kJ · mol−1
- ^ ΔfH°, -959.0 kJ · mol−1
- ^ ΔfH°, -565. kJ · mol−1
- ^ ΔfH°, -1264.8 kJ · mol−1
- ^ ΔfH°, -3352.2 kJ · mol−1
- ^ ΔfH°, -484.5 kJ · mol−1
- ^ ΔfG°, -389.9 kJ · mol−1
- ^ S°, 159.8 J · K−1 · mol−1
- ^ Cp°, 124.3 J · K−1 · mol−1
- ^ ΔfH°, -432.25 kJ · mol−1
- ^ ΔfG°, -374.0 kJ · mol−1
- ^ S°, 282.5 J · K−1 · mol−1
- ^ Cp°, 66.5 J · K−1 · mol−1
- ^ ΔfH°, -486.01 kJ · mol−1
- ^ ΔfG°, -369.31 kJ · mol−1
- ^ S°, 86.6 J · K−1 · mol−1
- ^ Cp°, -6.3 J · K−1 · mol−1
- ^ ΔfH°, -485.76 kJ · mol−1
- ^ ΔfG°, -396.46 kJ · mol−1
- ^ S°, 178.7 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 5.740 J · K−1 · mol−1
- ^ Cp°, 8.527 J · K−1 · mol−1
- ^ ΔfH°, 1.895 kJ · mol−1
- ^ ΔfG°, 2.900 kJ · mol−1
- ^ S°, 2.377 J · K−1 · mol−1
- ^ Cp°, 6.113 J · K−1 · mol−1
- ^ ΔfH°, 716.682 kJ · mol−1
- ^ ΔfG°, 671.257 kJ · mol−1
- ^ S°, 158.096 J · K−1 · mol−1
- ^ Cp°, 20.838 J · K−1 · mol−1