Fe + H2Se → FeSe + H2
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- Reaction of and hydrogen selenide
The reaction of and hydrogen selenide yields iron(II) selenide and . This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of and hydrogen selenide
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 hydrogen selenide
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
1 | Reducing | Reducing Active metal | ||
H2Se | Hydrogen selenide | 1 | Oxidizing | Reducible Acid |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
FeSe | Iron(II) selenide | 1 | Oxidized | – Salt |
1 | Reduced | – Hydrogen |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of and hydrogen selenide
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 | −105.0 | – | – | – |
−105.0 | – | – | – | |
per 1 mol of | −105.0 | – | – | – |
per 1 mol of | −105.0 | – | – | – |
−105.0 | – | – | – |
Changes in standard condition (2)
- Reaction of and hydrogen selenide
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 | −93.3 | – | – | – |
−93.3 | – | – | – | |
per 1 mol of | −93.3 | – | – | – |
per 1 mol of | −93.3 | – | – | – |
−93.3 | – | – | – |
Changes in aqueous solution (1)
- Reaction of and hydrogen selenide
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 | −94.5 | – | – | – |
−94.5 | – | – | – | |
per 1 mol of | −94.5 | – | – | – |
per 1 mol of | −94.5 | – | – | – |
−94.5 | – | – | – |
Changes in aqueous solution (2)
- Reaction of and hydrogen selenide
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 | −98.7 | – | – | – |
−98.7 | – | – | – | |
per 1 mol of | −98.7 | – | – | – |
per 1 mol of | −98.7 | – | – | – |
−98.7 | – | – | – |
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] | 27.28[1] | 25.10[1] |
(g) | 416.3[1] | 370.7[1] | 180.490[1] | 25.677[1] |
H2Se (g) | 29.7[1] | 15.9[1] | 219.02[1] | 34.73[1] |
H2Se (ao) | 19.2[1] | 22.2[1] | 163.6[1] | – |
* (cr):Crystalline solid, (g):Gas, (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 |
---|---|---|---|---|
FeSe (cr) | -75.3[1] | – | – | – |
FeSe (am) | -63.6[1] | – | – | – |
(g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
(ao) | -4.2[1] | 17.6[1] | 577[1] | – |
* (cr):Crystalline solid, (am):Amorphous 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°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 27.28 J · K−1 · mol−1
- ^ Cp°, 25.10 J · K−1 · mol−1
- ^ ΔfH°, 416.3 kJ · mol−1
- ^ ΔfG°, 370.7 kJ · mol−1
- ^ S°, 180.490 J · K−1 · mol−1
- ^ Cp°, 25.677 J · K−1 · mol−1
- ^ ΔfH°, 29.7 kJ · mol−1
- ^ ΔfG°, 15.9 kJ · mol−1
- ^ S°, 219.02 J · K−1 · mol−1
- ^ Cp°, 34.73 J · K−1 · mol−1
- ^ ΔfH°, 19.2 kJ · mol−1
- ^ ΔfG°, 22.2 kJ · mol−1
- ^ S°, 163.6 J · K−1 · mol−1
- ^ ΔfH°, -75.3 kJ · mol−1
- ^ ΔfH°, -63.6 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 130.684 J · K−1 · mol−1
- ^ Cp°, 28.824 J · K−1 · mol−1
- ^ ΔfH°, -4.2 kJ · mol−1
- ^ ΔfG°, 17.6 kJ · mol−1
- ^ S°, 577 J · K−1 · mol−1