4FeF2 + 2HNO3 + 12H+ ๐ฅโ 4Fe3+ + N2O3โ + 8HFโ + 3H2O
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- Reaction of iron(II) fluoride and nitric acid under acidic condition
- 4FeF2Iron(II) fluoride + 2HNO3Nitric acid + 12H+Hydrogen ion4Fe3+Iron(III) ion + N2O3โDinitrogen trioxide + 8HFโHydrogen fluoride + 3H2OWater๐ฅโถ
The reaction of iron(II) fluoride, nitric acid, and hydrogen ion yields iron(III) ion, dinitrogen trioxide, hydrogen fluoride, 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 iron(II) fluoride and nitric acid under acidic condition
- 4FeF2Iron(II) fluoride + 2HNO3Nitric acid + 12H+Hydrogen ion4Fe3+Iron(III) ion + N2O3โDinitrogen trioxide + 8HFโHydrogen fluoride + 3H2OWater๐ฅโถ
General equation
- Reaction of oxidizable species and oxidizing species under acidic condition
- Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H+Non-redox agent โถ ProductOxidation product + ProductReduction product + H2ONon-redox product
Oxidation state of each atom
- Reaction of iron(II) fluoride and nitric acid under acidic condition
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| FeF2 | Iron(II) fluoride | 4 | Reducing | Oxidizable |
| HNO3 | Nitric acid | 2 | Oxidizing | Oxidizing under acidic condition |
| H+ | Hydrogen ion | 12 | โ | Hydrogen ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Fe3+ | Iron(III) ion | 4 | Oxidized | โ |
| N2O3 | Dinitrogen trioxide | 1 | Reduced | โ |
| HF | Hydrogen fluoride | 8 | โ | โ |
| H2O | Water | 3 | โ | Water |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of iron(II) fluoride and nitric acid under acidic condition
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | 259.0 | โ | โ | โ |
per 1 mol of | 64.75 | โ | โ | โ |
per 1 mol of | 129.5 | โ | โ | โ |
per 1 mol of Hydrogen ion | 21.58 | โ | โ | โ |
per 1 mol of Iron(III) ion | 64.75 | โ | โ | โ |
per 1 mol of | 259.0 | โ | โ | โ |
per 1 mol of | 32.38 | โ | โ | โ |
per 1 mol of | 86.33 | โ | โ | โ |
Changes in standard condition (2)
- Reaction of iron(II) fluoride and nitric acid under acidic condition
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ132.9 | โ | โ | โ |
per 1 mol of | โ33.23 | โ | โ | โ |
per 1 mol of | โ66.45 | โ | โ | โ |
per 1 mol of Hydrogen ion | โ11.08 | โ | โ | โ |
per 1 mol of Iron(III) ion | โ33.23 | โ | โ | โ |
per 1 mol of | โ132.9 | โ | โ | โ |
per 1 mol of | โ16.61 | โ | โ | โ |
per 1 mol of | โ44.30 | โ | โ | โ |
Changes in standard condition (3)
- Reaction of iron(II) fluoride and nitric acid under acidic condition
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ233.3 | โ | โ | โ |
per 1 mol of | โ58.33 | โ | โ | โ |
per 1 mol of | โ116.7 | โ | โ | โ |
per 1 mol of Hydrogen ion | โ19.44 | โ | โ | โ |
per 1 mol of Iron(III) ion | โ58.33 | โ | โ | โ |
per 1 mol of | โ233.3 | โ | โ | โ |
per 1 mol of | โ29.16 | โ | โ | โ |
per 1 mol of | โ77.77 | โ | โ | โ |
Changes in standard condition (4)
- Reaction of iron(II) fluoride and nitric acid under acidic condition
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ132.9 | โ | โ | โ |
per 1 mol of | โ33.23 | โ | โ | โ |
per 1 mol of | โ66.45 | โ | โ | โ |
per 1 mol of Hydrogen ion | โ11.08 | โ | โ | โ |
per 1 mol of Iron(III) ion | โ33.23 | โ | โ | โ |
per 1 mol of | โ132.9 | โ | โ | โ |
per 1 mol of | โ16.61 | โ | โ | โ |
per 1 mol of | โ44.30 | โ | โ | โ |
Changes in standard condition (5)
- Reaction of iron(II) fluoride and nitric acid under acidic conditionโ
ฮrG 120.6 kJ/mol K 0.74 ร 10โ21 pK 21.13
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | 123.4 | 120.6 | 7.9 | โ |
per 1 mol of | 30.85 | 30.15 | 2.0 | โ |
per 1 mol of | 61.70 | 60.30 | 4.0 | โ |
per 1 mol of Hydrogen ion | 10.28 | 10.05 | 0.66 | โ |
per 1 mol of Iron(III) ion | 30.85 | 30.15 | 2.0 | โ |
per 1 mol of | 123.4 | 120.6 | 7.9 | โ |
per 1 mol of | 15.43 | 15.07 | 0.99 | โ |
per 1 mol of | 41.13 | 40.20 | 2.6 | โ |
Changes in standard condition (6)
- Reaction of iron(II) fluoride and nitric acid under acidic conditionโ
ฮrG โ68.4 kJ/mol K 9.62 ร 1011 pK โ11.98
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ268.5 | โ68.4 | โ672.8 | โ |
per 1 mol of | โ67.13 | โ17.1 | โ168.2 | โ |
per 1 mol of | โ134.3 | โ34.2 | โ336.4 | โ |
per 1 mol of Hydrogen ion | โ22.38 | โ5.70 | โ56.07 | โ |
per 1 mol of Iron(III) ion | โ67.13 | โ17.1 | โ168.2 | โ |
per 1 mol of | โ268.5 | โ68.4 | โ672.8 | โ |
per 1 mol of | โ33.56 | โ8.55 | โ84.10 | โ |
per 1 mol of | โ89.50 | โ22.8 | โ224.3 | โ |
Changes in standard condition (7)
- Reaction of iron(II) fluoride and nitric acid under acidic conditionโ
ฮrG 75.9 kJ/mol K 0.50 ร 10โ13 pK 13.30
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ368.9 | 75.9 | โ1492.8 | โ |
per 1 mol of | โ92.22 | 19.0 | โ373.20 | โ |
per 1 mol of | โ184.4 | 38.0 | โ746.40 | โ |
per 1 mol of Hydrogen ion | โ30.74 | 6.33 | โ124.40 | โ |
per 1 mol of Iron(III) ion | โ92.22 | 19.0 | โ373.20 | โ |
per 1 mol of | โ368.9 | 75.9 | โ1492.8 | โ |
per 1 mol of | โ46.11 | 9.49 | โ186.60 | โ |
per 1 mol of | โ123.0 | 25.3 | โ497.60 | โ |
Changes in standard condition (8)
- Reaction of iron(II) fluoride and nitric acid under acidic conditionโ
ฮrG โ68.4 kJ/mol K 9.62 ร 1011 pK โ11.98
| Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
|---|---|---|---|---|
per 1 mol of Equation | โ268.5 | โ68.4 | โ672.8 | โ |
per 1 mol of | โ67.13 | โ17.1 | โ168.2 | โ |
per 1 mol of | โ134.3 | โ34.2 | โ336.4 | โ |
per 1 mol of Hydrogen ion | โ22.38 | โ5.70 | โ56.07 | โ |
per 1 mol of Iron(III) ion | โ67.13 | โ17.1 | โ168.2 | โ |
per 1 mol of | โ268.5 | โ68.4 | โ672.8 | โ |
per 1 mol of | โ33.56 | โ8.55 | โ84.10 | โ |
per 1 mol of | โ89.50 | โ22.8 | โ224.3 | โ |
Thermodynamic data of reactants
| Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
|---|---|---|---|---|
| FeF2 (cr) | -711.3[1] | -668.6[1] | 86.99[1] | 68.12[1] |
| FeF2 (ai) | -754.4[1] | -636.48[1] | -165.3[1] | โ |
| FeF2 (aq) | -745.2[1] | โ | โ | โ |
| HNO3 (l) | -174.10[1] | -80.71[1] | 155.60[1] | 109.87[1] |
| HNO3 (g) | -135.06[1] | -74.72[1] | 266.38[1] | 53.35[1] |
| HNO3 (ai) | -207.36[1] | -111.25[1] | 146.4[1] | -86.6[1] |
| HNO3 (l) 1 hydrate | -473.46[1] | -328.77[1] | 216.90[1] | 182.46[1] |
| HNO3 (l) 3 hydrate | -1056.04[1] | -811.09[1] | 346.98[1] | 325.14[1] |
| H+ (g) | 1536.202[1] | โ | โ | โ |
| H+ (ao) | 0[1] | 0[1] | 0[1] | 0[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (aq):Aqueous solution, (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution
Thermodynamic data of products
| Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
|---|---|---|---|---|
| Fe3+ (g) | 5712.8[1] | โ | โ | โ |
| Fe3+ (ao) | -48.5[1] | -4.7[1] | -315.9[1] | โ |
| N2O3 (l) | 50.29[1] | โ | โ | โ |
| N2O3 (g) | 83.72[1] | 139.46[1] | 312.28[1] | 65.61[1] |
| HF (l) x denotes undetermined zero point entropy | -299.78[1] | โ | 75.40+x[1] | โ |
| HF (g) | -271.1[1] | -273.2[1] | 173.779[1] | 29.133[1] |
| HF (ai) | -332.63[1] | -278.79[1] | -13.8[1] | -106.7[1] |
| HF (ao) | -320.08[1] | -296.82[1] | 88.7[1] | โ |
| H2O (cr) | โ | โ | โ | โ |
| 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] |
* (g):Gas, (ao):Un-ionized aqueous solution, (l):Liquid, (ai):Ionized aqueous solution, (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)
- ^ ฮfHยฐ, -711.3 kJ ยท molโ1
- ^ ฮfGยฐ, -668.6 kJ ยท molโ1
- ^ Sยฐ, 86.99 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 68.12 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -754.4 kJ ยท molโ1
- ^ ฮfGยฐ, -636.48 kJ ยท molโ1
- ^ Sยฐ, -165.3 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -745.2 kJ ยท molโ1
- ^ ฮfHยฐ, -174.10 kJ ยท molโ1
- ^ ฮfGยฐ, -80.71 kJ ยท molโ1
- ^ Sยฐ, 155.60 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 109.87 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -135.06 kJ ยท molโ1
- ^ ฮfGยฐ, -74.72 kJ ยท molโ1
- ^ Sยฐ, 266.38 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 53.35 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -207.36 kJ ยท molโ1
- ^ ฮfGยฐ, -111.25 kJ ยท molโ1
- ^ Sยฐ, 146.4 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -86.6 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -473.46 kJ ยท molโ1
- ^ ฮfGยฐ, -328.77 kJ ยท molโ1
- ^ Sยฐ, 216.90 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 182.46 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -1056.04 kJ ยท molโ1
- ^ ฮfGยฐ, -811.09 kJ ยท molโ1
- ^ Sยฐ, 346.98 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 325.14 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 1536.202 kJ ยท molโ1
- ^ ฮfHยฐ, 0 kJ ยท molโ1
- ^ ฮfGยฐ, 0 kJ ยท molโ1
- ^ Sยฐ, 0 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 0 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 5712.8 kJ ยท molโ1
- ^ ฮfHยฐ, -48.5 kJ ยท molโ1
- ^ ฮfGยฐ, -4.7 kJ ยท molโ1
- ^ Sยฐ, -315.9 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 50.29 kJ ยท molโ1
- ^ ฮfHยฐ, 83.72 kJ ยท molโ1
- ^ ฮfGยฐ, 139.46 kJ ยท molโ1
- ^ Sยฐ, 312.28 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 65.61 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -299.78 kJ ยท molโ1
- ^ Sยฐ, 75.40+x J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -271.1 kJ ยท molโ1
- ^ ฮfGยฐ, -273.2 kJ ยท molโ1
- ^ Sยฐ, 173.779 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 29.133 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -332.63 kJ ยท molโ1
- ^ ฮfGยฐ, -278.79 kJ ยท molโ1
- ^ Sยฐ, -13.8 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -106.7 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -320.08 kJ ยท molโ1
- ^ ฮfGยฐ, -296.82 kJ ยท molโ1
- ^ Sยฐ, 88.7 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -285.830 kJ ยท molโ1
- ^ ฮfGยฐ, -237.129 kJ ยท molโ1
- ^ Sยฐ, 69.91 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 75.291 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -241.818 kJ ยท molโ1
- ^ ฮfGยฐ, -228.572 kJ ยท molโ1
- ^ Sยฐ, 188.825 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 33.577 J ยท Kโ1 ยท molโ1