LiI + H2SO4 → LiHSO4 + HI↑
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The reaction of lithium iodide and sulfuric acid yields lithium hydrogensulfate and hydrogen iodide (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of lithium iodide and sulfuric acid
General equation
- Salt of volatile acidBrønsted base + Nonvolatile acidBrønsted acid ⟶ Salt of non volatile acidConjugate base + Volatile acidConjugate acid
Oxidation state of each atom
- Reaction of lithium iodide and sulfuric acid
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| LiI | Lithium iodide | 1 | Brønsted base | Salt of volatile acid |
| H2SO4 | Sulfuric acid | 1 | Brønsted acid | Nonvolatile acid |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| LiHSO4 | Lithium hydrogensulfate | 1 | Conjugate base | Salt of non volatile acid |
| HI | Hydrogen iodide | 1 | Conjugate acid | Volatile acid |
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 |
|---|---|---|---|---|
| LiI (cr) | -270.41[1] | -270.29[1] | 86.78[1] | 51.04[1] |
| LiI (g) | -81.09[1] | -124.34[1] | 232.321[1] | 34.64[1] |
| LiI (ai) | -333.67[1] | -344.8[1] | 124.7[1] | -73.6[1] |
| LiI (cr) 1 hydrate | -590.32[1] | -531.3[1] | 123.0[1] | – |
| LiI (cr) 2 hydrate | -890.40[1] | -780.2[1] | 184[1] | – |
| LiI (cr) 3 hydrate | -1192.15[1] | -1032.13[1] | 250.2[1] | – |
| H2SO4 (cr) | – | – | – | – |
| H2SO4 (l) | -813.989[1] | -690.003[1] | 156.904[1] | 138.91[1] |
| H2SO4 (ai) | -909.27[1] | -744.53[1] | 20.1[1] | -293[1] |
| H2SO4 (l) 1 hydrate | -1127.621[1] | -950.383[1] | 211.54[1] | 214.85[1] |
| H2SO4 (l) 2 hydrate | -1427.100[1] | -1199.650[1] | 276.40[1] | 260.83[1] |
| H2SO4 (l) 3 hydrate | -1720.402[1] | -1443.980[1] | 345.39[1] | 318.95[1] |
| H2SO4 (l) 4 hydrate | -2011.199[1] | -1685.863[1] | 414.59[1] | 382.21[1] |
| H2SO4 (l) 6.5 hydrate | -2733.256[1] | -2285.734[1] | 587.89[1] | 570.28[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid
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 |
|---|---|---|---|---|
| LiHSO4 | – | – | – | – |
| HI (g) | 26.48[1] | 1.70[1] | 206.594[1] | 29.158[1] |
| HI (ai) | -55.19[1] | -51.57[1] | 111.3[1] | -142.3[1] |
* (g):Gas, (ai):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°, -270.41 kJ · mol−1
- ^ ΔfG°, -270.29 kJ · mol−1
- ^ S°, 86.78 J · K−1 · mol−1
- ^ Cp°, 51.04 J · K−1 · mol−1
- ^ ΔfH°, -81.09 kJ · mol−1
- ^ ΔfG°, -124.34 kJ · mol−1
- ^ S°, 232.321 J · K−1 · mol−1
- ^ Cp°, 34.64 J · K−1 · mol−1
- ^ ΔfH°, -333.67 kJ · mol−1
- ^ ΔfG°, -344.8 kJ · mol−1
- ^ S°, 124.7 J · K−1 · mol−1
- ^ Cp°, -73.6 J · K−1 · mol−1
- ^ ΔfH°, -590.32 kJ · mol−1
- ^ ΔfG°, -531.3 kJ · mol−1
- ^ S°, 123.0 J · K−1 · mol−1
- ^ ΔfH°, -890.40 kJ · mol−1
- ^ ΔfG°, -780.2 kJ · mol−1
- ^ S°, 184. J · K−1 · mol−1
- ^ ΔfH°, -1192.15 kJ · mol−1
- ^ ΔfG°, -1032.13 kJ · mol−1
- ^ S°, 250.2 J · K−1 · mol−1
- ^ ΔfH°, -813.989 kJ · mol−1
- ^ ΔfG°, -690.003 kJ · mol−1
- ^ S°, 156.904 J · K−1 · mol−1
- ^ Cp°, 138.91 J · K−1 · mol−1
- ^ ΔfH°, -909.27 kJ · mol−1
- ^ ΔfG°, -744.53 kJ · mol−1
- ^ S°, 20.1 J · K−1 · mol−1
- ^ Cp°, -293. J · K−1 · mol−1
- ^ ΔfH°, -1127.621 kJ · mol−1
- ^ ΔfG°, -950.383 kJ · mol−1
- ^ S°, 211.54 J · K−1 · mol−1
- ^ Cp°, 214.85 J · K−1 · mol−1
- ^ ΔfH°, -1427.100 kJ · mol−1
- ^ ΔfG°, -1199.650 kJ · mol−1
- ^ S°, 276.40 J · K−1 · mol−1
- ^ Cp°, 260.83 J · K−1 · mol−1
- ^ ΔfH°, -1720.402 kJ · mol−1
- ^ ΔfG°, -1443.980 kJ · mol−1
- ^ S°, 345.39 J · K−1 · mol−1
- ^ Cp°, 318.95 J · K−1 · mol−1
- ^ ΔfH°, -2011.199 kJ · mol−1
- ^ ΔfG°, -1685.863 kJ · mol−1
- ^ S°, 414.59 J · K−1 · mol−1
- ^ Cp°, 382.21 J · K−1 · mol−1
- ^ ΔfH°, -2733.256 kJ · mol−1
- ^ ΔfG°, -2285.734 kJ · mol−1
- ^ S°, 587.89 J · K−1 · mol−1
- ^ Cp°, 570.28 J · K−1 · mol−1
- ^ ΔfH°, 26.48 kJ · mol−1
- ^ ΔfG°, 1.70 kJ · mol−1
- ^ S°, 206.594 J · K−1 · mol−1
- ^ Cp°, 29.158 J · K−1 · mol−1
- ^ ΔfH°, -55.19 kJ · mol−1
- ^ ΔfG°, -51.57 kJ · mol−1
- ^ S°, 111.3 J · K−1 · mol−1
- ^ Cp°, -142.3 J · K−1 · mol−1