C2H4 + H2 → C2H6
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The reaction of and yields . This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
General equation
- Hydrogenation of alkene
- AlkeneOxidizing agent + Reducing agentNi|Pd|Pt⟶AlkaneOxidation reduction product
Oxidation state of each atom
Reactants
Products
Thermodynamic changes
Changes in standard condition
| 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 | −136.94 | −100.97 | −120.64 | −19.75 |
| −136.94 | −100.97 | −120.64 | −19.75 | |
| −136.94 | −100.97 | −120.64 | −19.75 | |
| −136.94 | −100.97 | −120.64 | −19.75 |
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 |
|---|---|---|---|---|
| (g) | 52.26[1] | 68.15[1] | 219.56[1] | 43.56[1] |
| (ao) | 36.36[1] | 81.36[1] | 122.2[1] | – |
| (g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
| (ao) | -4.2[1] | 17.6[1] | 577[1] | – |
* (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 |
|---|---|---|---|---|
| (g) | -84.68[1] | -32.82[1] | 229.60[1] | 52.63[1] |
| (ao) | -102.09[1] | -17.01[1] | 118.4[1] | – |
* (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°, 52.26 kJ · mol−1
- ^ ΔfG°, 68.15 kJ · mol−1
- ^ S°, 219.56 J · K−1 · mol−1
- ^ Cp°, 43.56 J · K−1 · mol−1
- ^ ΔfH°, 36.36 kJ · mol−1
- ^ ΔfG°, 81.36 kJ · mol−1
- ^ S°, 122.2 J · K−1 · 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
- ^ ΔfH°, -84.68 kJ · mol−1
- ^ ΔfG°, -32.82 kJ · mol−1
- ^ S°, 229.60 J · K−1 · mol−1
- ^ Cp°, 52.63 J · K−1 · mol−1
- ^ ΔfH°, -102.09 kJ · mol−1
- ^ ΔfG°, -17.01 kJ · mol−1
- ^ S°, 118.4 J · K−1 · mol−1