CdCl2 🔥⚡→ Cd + Cl2↑
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- Molten salt electrolysis of cadmium chloride
Molten salt electrolysis of cadmium chloride yields and . This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Molten salt electrolysis of cadmium chloride
General equation
- Molten salt electrolysis
- SaltSelf redox agent🔥⚡⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Molten salt electrolysis of cadmium chloride
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CdCl2 | Cadmium chloride | 1 | Self redox agent | Salt |
Products
Thermodynamic changes
Changes in standard condition (1)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 343.93 kJ/mol K 0.56 × 10−60 pK 60.25
| 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 | 391.50 | 343.93 | 159.56 | −14.79 |
per 1 mol of | 391.50 | 343.93 | 159.56 | −14.79 |
| 391.50 | 343.93 | 159.56 | −14.79 | |
| 391.50 | 343.93 | 159.56 | −14.79 |
Changes in standard condition (2)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 343.34 kJ/mol K 0.71 × 10−60 pK 60.15
| 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 | 390.91 | 343.34 | 159.56 | – |
per 1 mol of | 390.91 | 343.34 | 159.56 | – |
| 390.91 | 343.34 | 159.56 | – | |
| 390.91 | 343.34 | 159.56 | – |
Changes in aqueous solution (1)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 340.068 kJ/mol K 0.26 × 10−59 pK 59.58
| 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 | 410.20 | 340.068 | 235.1 | – |
per 1 mol of | 410.20 | 340.068 | 235.1 | – |
| 410.20 | 340.068 | 235.1 | – | |
| 410.20 | 340.068 | 235.1 | – |
Changes in aqueous solution (2)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 347.01 kJ/mol K 0.16 × 10−60 pK 60.79
| 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 | 386.8 | 347.01 | 133 | – |
per 1 mol of | 386.8 | 347.01 | 133 | – |
| 386.8 | 347.01 | 133 | – | |
| 386.8 | 347.01 | 133 | – |
Changes in aqueous solution (3)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 359.29 kJ/mol K 0.11 × 10−62 pK 62.94
| 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 | 405.0 | 359.29 | 153.0 | – |
per 1 mol of | 405.0 | 359.29 | 153.0 | – |
| 405.0 | 359.29 | 153.0 | – | |
| 405.0 | 359.29 | 153.0 | – |
Changes in aqueous solution (4)
- Molten salt electrolysis of cadmium chloride◆
ΔrG 366.23 kJ/mol K 0.69 × 10−64 pK 64.16
| 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 | 381.6 | 366.23 | 51 | – |
per 1 mol of | 381.6 | 366.23 | 51 | – |
| 381.6 | 366.23 | 51 | – | |
| 381.6 | 366.23 | 51 | – |
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 |
|---|---|---|---|---|
| CdCl2 (cr) | -391.50[1] | -343.93[1] | 115.27[1] | 74.68[1] |
| CdCl2 (ai) | -410.20[1] | -340.068[1] | 39.7[1] | – |
| CdCl2 (ao) | -405.0[1] | -359.29[1] | 121.8[1] | – |
| CdCl2 (cr) 1 hydrate | -688.44[1] | -586.975[1] | 167.8[1] | – |
| CdCl2 (cr) 2.5 hydrate | -1131.94[1] | -943.939[1] | 227.2[1] | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (ao):Un-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 |
|---|---|---|---|---|
| (cr) γ | 0[1] | 0[1] | 51.76[1] | 25.98[1] |
| (cr) α | -0.59[1] | -0.59[1] | 51.76[1] | – |
| (g) | 112.01[1] | 77.41[1] | 167.746[1] | 20.786[1] |
| (g) | 0[1] | 0[1] | 223.066[1] | 33.907[1] |
| (ao) | -23.4[1] | 6.94[1] | 121[1] | – |
* (cr):Crystalline solid, (g):Gas, (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°, -391.50 kJ · mol−1
- ^ ΔfG°, -343.93 kJ · mol−1
- ^ S°, 115.27 J · K−1 · mol−1
- ^ Cp°, 74.68 J · K−1 · mol−1
- ^ ΔfH°, -410.20 kJ · mol−1
- ^ ΔfG°, -340.068 kJ · mol−1
- ^ S°, 39.7 J · K−1 · mol−1
- ^ ΔfH°, -405.0 kJ · mol−1
- ^ ΔfG°, -359.29 kJ · mol−1
- ^ S°, 121.8 J · K−1 · mol−1
- ^ ΔfH°, -688.44 kJ · mol−1
- ^ ΔfG°, -586.975 kJ · mol−1
- ^ S°, 167.8 J · K−1 · mol−1
- ^ ΔfH°, -1131.94 kJ · mol−1
- ^ ΔfG°, -943.939 kJ · mol−1
- ^ S°, 227.2 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 51.76 J · K−1 · mol−1
- ^ Cp°, 25.98 J · K−1 · mol−1
- ^ ΔfH°, -0.59 kJ · mol−1
- ^ ΔfG°, -0.59 kJ · mol−1
- ^ S°, 51.76 J · K−1 · mol−1
- ^ ΔfH°, 112.01 kJ · mol−1
- ^ ΔfG°, 77.41 kJ · mol−1
- ^ S°, 167.746 J · K−1 · mol−1
- ^ Cp°, 20.786 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