9HCl + 8CsNO3 🔥→ HClO4 + 4N2O4 + 8CsCl + 4H2O
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The reaction of hydrogen chloride and caesium nitrate yields perchloric acid, dinitrogen tetraoxide, caesium chloride, 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 hydrogen chloride and caesium nitrate
General equation
- Reaction of hardly oxidizable species and oxidizing species
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of hydrogen chloride and caesium nitrate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| HCl | Hydrogen chloride | 9 | Reducing | Hardly oxidizable |
| CsNO3 | Caesium nitrate | 8 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| HClO4 | Perchloric acid | 1 | Oxidized | – |
| N2O4 | Dinitrogen tetraoxide | 4 | Reduced | – |
| CsCl | Caesium chloride | 8 | – | – |
| H2O | Water | 4 | – | – |
Thermodynamic changes
Changes in standard condition
- Reaction of hydrogen chloride and caesium nitrate
| 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 | 72.30 | – | – | – |
per 1 mol of | 8.033 | – | – | – |
per 1 mol of | 9.037 | – | – | – |
per 1 mol of | 72.30 | – | – | – |
per 1 mol of | 18.07 | – | – | – |
per 1 mol of | 9.037 | – | – | – |
per 1 mol of | 18.07 | – | – | – |
Changes in aqueous solution
- Reaction of hydrogen chloride and caesium nitrate◆
ΔrG 454.42 kJ/mol K 0.24 × 10−79 pK 79.61
| 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 | 475.46 | 454.42 | 70.3 | – |
per 1 mol of | 52.829 | 50.491 | 7.81 | – |
per 1 mol of | 59.432 | 56.803 | 8.79 | – |
per 1 mol of | 475.46 | 454.42 | 70.3 | – |
per 1 mol of | 118.86 | 113.61 | 17.6 | – |
per 1 mol of | 59.432 | 56.803 | 8.79 | – |
per 1 mol of | 118.86 | 113.61 | 17.6 | – |
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 |
|---|---|---|---|---|
| HCl (g) | -92.307[1] | -95.299[1] | 186.908[1] | 29.12[1] |
| HCl (ai) | -167.159[1] | -131.228[1] | 56.5[1] | -136.4[1] |
| CsNO3 (cr) | -505.97[1] | -406.54[1] | 155.2[1] | – |
| CsNO3 (g) | -374.0[1] | – | – | – |
| CsNO3 (ai) | -465.64[1] | -403.27[1] | 279.5[1] | -99[1] |
* (g):Gas, (ai):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 |
|---|---|---|---|---|
| HClO4 (l) | -40.58[1] | – | – | – |
| HClO4 (ai) | -129.33[1] | -8.52[1] | 182.0[1] | – |
| HClO4 (cr) 1 hydrate | -382.21[1] | – | – | – |
| HClO4 (l) 2 hydrate | -677.98[1] | – | – | – |
| N2O4 (l) | -19.50[1] | 97.54[1] | 209.2[1] | 142.7[1] |
| N2O4 (g) | 9.16[1] | 97.89[1] | 304.29[1] | 77.28[1] |
| CsCl (cr) | -443.04[1] | -414.53[1] | 101.17[1] | 52.47[1] |
| CsCl (g) | -240.20[1] | -257.80[1] | 255.96[1] | 36.94[1] |
| CsCl (ai) | -425.43[1] | -423.24[1] | 189.54[1] | -146.9[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, (ai):Ionized aqueous solution, (cr):Crystalline solid, (g):Gas
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°, -92.307 kJ · mol−1
- ^ ΔfG°, -95.299 kJ · mol−1
- ^ S°, 186.908 J · K−1 · mol−1
- ^ Cp°, 29.12 J · K−1 · mol−1
- ^ ΔfH°, -167.159 kJ · mol−1
- ^ ΔfG°, -131.228 kJ · mol−1
- ^ S°, 56.5 J · K−1 · mol−1
- ^ Cp°, -136.4 J · K−1 · mol−1
- ^ ΔfH°, -505.97 kJ · mol−1
- ^ ΔfG°, -406.54 kJ · mol−1
- ^ S°, 155.2 J · K−1 · mol−1
- ^ ΔfH°, -374.0 kJ · mol−1
- ^ ΔfH°, -465.64 kJ · mol−1
- ^ ΔfG°, -403.27 kJ · mol−1
- ^ S°, 279.5 J · K−1 · mol−1
- ^ Cp°, -99. J · K−1 · mol−1
- ^ ΔfH°, -40.58 kJ · mol−1
- ^ ΔfH°, -129.33 kJ · mol−1
- ^ ΔfG°, -8.52 kJ · mol−1
- ^ S°, 182.0 J · K−1 · mol−1
- ^ ΔfH°, -382.21 kJ · mol−1
- ^ ΔfH°, -677.98 kJ · mol−1
- ^ ΔfH°, -19.50 kJ · mol−1
- ^ ΔfG°, 97.54 kJ · mol−1
- ^ S°, 209.2 J · K−1 · mol−1
- ^ Cp°, 142.7 J · K−1 · mol−1
- ^ ΔfH°, 9.16 kJ · mol−1
- ^ ΔfG°, 97.89 kJ · mol−1
- ^ S°, 304.29 J · K−1 · mol−1
- ^ Cp°, 77.28 J · K−1 · mol−1
- ^ ΔfH°, -443.04 kJ · mol−1
- ^ ΔfG°, -414.53 kJ · mol−1
- ^ S°, 101.17 J · K−1 · mol−1
- ^ Cp°, 52.47 J · K−1 · mol−1
- ^ ΔfH°, -240.20 kJ · mol−1
- ^ ΔfG°, -257.80 kJ · mol−1
- ^ S°, 255.96 J · K−1 · mol−1
- ^ Cp°, 36.94 J · K−1 · mol−1
- ^ ΔfH°, -425.43 kJ · mol−1
- ^ ΔfG°, -423.24 kJ · mol−1
- ^ S°, 189.54 J · K−1 · mol−1
- ^ Cp°, -146.9 J · K−1 · 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