PbBr2 🔥⚡→ Pb + Br2
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- Molten salt electrolysis of lead(II) bromide
Molten salt electrolysis of lead(II) bromide 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 lead(II) bromide
General equation
- Molten salt electrolysis
- SaltSelf redox agent🔥⚡⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Molten salt electrolysis of lead(II) bromide
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
PbBr2 | Lead(II) bromide | 1 | Self redox agent | Salt |
Products
Thermodynamic changes
Changes in standard condition
- Molten salt electrolysis of lead(II) bromide◆
ΔrG 261.92 kJ/mol K 0.13 × 10−45 pK 45.89
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 | 278.7 | 261.92 | 55.5 | 22.01 |
per 1 mol of | 278.7 | 261.92 | 55.5 | 22.01 |
278.7 | 261.92 | 55.5 | 22.01 | |
278.7 | 261.92 | 55.5 | 22.01 |
Changes in aqueous solution (1)
- Molten salt electrolysis of lead(II) bromide◆
ΔrG 236.27 kJ/mol K 0.40 × 10−41 pK 41.39
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 | 242.2 | 236.27 | 20.0 | – |
per 1 mol of | 242.2 | 236.27 | 20.0 | – |
242.2 | 236.27 | 20.0 | – | |
242.2 | 236.27 | 20.0 | – |
Changes in aqueous solution (2)
- Molten salt electrolysis of lead(II) bromide◆
ΔrG 244.5 kJ/mol K 0.15 × 10−42 pK 42.83
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 | – | 244.5 | – | – |
per 1 mol of | – | 244.5 | – | – |
– | 244.5 | – | – | |
– | 244.5 | – | – |
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 |
---|---|---|---|---|
PbBr2 (cr) | -278.7[1] | -261.92[1] | 161.5[1] | 80.12[1] |
PbBr2 (ai) | -244.8[1] | -232.34[1] | 175.3[1] | – |
PbBr2 (ao) | – | -240.6[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) | 0[1] | 0[1] | 64.81[1] | 26.44[1] |
(g) | 195.0[1] | 161.9[1] | 175.373[1] | 20.786[1] |
(cr) | – | – | – | – |
(l) | 0[1] | 0[1] | 152.231[1] | 75.689[1] |
(g) | 30.907[1] | 3.110[1] | 245.463[1] | 36.02[1] |
(ao) | -2.59[1] | 3.93[1] | 130.5[1] | – |
* (cr):Crystalline solid, (g):Gas, (l):Liquid, (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°, -278.7 kJ · mol−1
- ^ ΔfG°, -261.92 kJ · mol−1
- ^ S°, 161.5 J · K−1 · mol−1
- ^ Cp°, 80.12 J · K−1 · mol−1
- ^ ΔfH°, -244.8 kJ · mol−1
- ^ ΔfG°, -232.34 kJ · mol−1
- ^ S°, 175.3 J · K−1 · mol−1
- ^ ΔfG°, -240.6 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 64.81 J · K−1 · mol−1
- ^ Cp°, 26.44 J · K−1 · mol−1
- ^ ΔfH°, 195.0 kJ · mol−1
- ^ ΔfG°, 161.9 kJ · mol−1
- ^ S°, 175.373 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 152.231 J · K−1 · mol−1
- ^ Cp°, 75.689 J · K−1 · mol−1
- ^ ΔfH°, 30.907 kJ · mol−1
- ^ ΔfG°, 3.110 kJ · mol−1
- ^ S°, 245.463 J · K−1 · mol−1
- ^ Cp°, 36.02 J · K−1 · mol−1
- ^ ΔfH°, -2.59 kJ · mol−1
- ^ ΔfG°, 3.93 kJ · mol−1
- ^ S°, 130.5 J · K−1 · mol−1