3C2H5OH + 2CrO3 + 6H+ → 3CH3CHO + 2Cr3+ + 6H2O
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- Reaction of , chromium(VI) oxide, and hydrogen ion
The reaction of , chromium(VI) oxide, and hydrogen ion yields , chromium(III) ion, and water (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of , chromium(VI) oxide, and hydrogen ion
General equation
- Oxidation of alcohol to aldehyde with chromium vi compound
- AlcoholReducing agent + Chromium vi compoundOxidizing agent + H+Non-redox agent ⟶ AldehydeOxidation product + Cr3+Reduction product + Cation(Non-redox product) + H2ONon-redox product
Oxidation state of each atom
- Reaction of , chromium(VI) oxide, and hydrogen ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| 3 | Reducing | Alcohol | ||
| CrO3 | Chromium(VI) oxide | 2 | Oxidizing | Chromium vi compound |
| H+ | Hydrogen ion | 6 | – | Hydrogen ion |
Products
Thermodynamic changes
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 |
|---|---|---|---|---|
| (l) | -277.69[1] | -174.78[1] | 160.7[1] | 111.46[1] |
| (g) | -235.10[1] | -168.49[1] | 282.70[1] | 65.44[1] |
| (ao) | -288.3[1] | -181.64[1] | 148.5[1] | – |
| CrO3 (cr) | -589.5[1] | – | – | – |
| CrO3 (g) | -385.8[1] | – | – | – |
| H+ (g) | 1536.202[1] | – | – | – |
| H+ (ao) | 0[1] | 0[1] | 0[1] | 0[1] |
* (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid
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 |
|---|---|---|---|---|
| (l) | -192.30[1] | -128.12[1] | 160.2[1] | – |
| (g) | -155.69[1] | -132.86[1] | 263.8[1] | 55.30[1] |
| Cr3+ (g) | 5648.4[1] | – | – | – |
| H2O (cr) | – | – | – | – |
| H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
| H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (l):Liquid, (g):Gas, (cr):Crystalline solid
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°, -277.69 kJ · mol−1
- ^ ΔfG°, -174.78 kJ · mol−1
- ^ S°, 160.7 J · K−1 · mol−1
- ^ Cp°, 111.46 J · K−1 · mol−1
- ^ ΔfH°, -235.10 kJ · mol−1
- ^ ΔfG°, -168.49 kJ · mol−1
- ^ S°, 282.70 J · K−1 · mol−1
- ^ Cp°, 65.44 J · K−1 · mol−1
- ^ ΔfH°, -288.3 kJ · mol−1
- ^ ΔfG°, -181.64 kJ · mol−1
- ^ S°, 148.5 J · K−1 · mol−1
- ^ ΔfH°, -589.5 kJ · mol−1
- ^ ΔfH°, -385.8 kJ · mol−1
- ^ ΔfH°, 1536.202 kJ · mol−1
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 0 J · K−1 · mol−1
- ^ Cp°, 0 J · K−1 · mol−1
- ^ ΔfH°, -192.30 kJ · mol−1
- ^ ΔfG°, -128.12 kJ · mol−1
- ^ S°, 160.2 J · K−1 · mol−1
- ^ ΔfH°, -155.69 kJ · mol−1
- ^ ΔfG°, -132.86 kJ · mol−1
- ^ S°, 263.8 J · K−1 · mol−1
- ^ Cp°, 55.30 J · K−1 · mol−1
- ^ ΔfH°, 5648.4 kJ · mol−1
- ^ ΔfH°, -285.830 kJ · mol−1
- ^ ΔfG°, -237.129 kJ · mol−1
- ^ S°, 69.91 J · K−1 · mol−1
- ^ Cp°, 75.291 J · K−1 · mol−1
- ^ ΔfH°, -241.818 kJ · mol−1
- ^ ΔfG°, -228.572 kJ · mol−1
- ^ S°, 188.825 J · K−1 · mol−1
- ^ Cp°, 33.577 J · K−1 · mol−1