CsHCO3 + HBr → CsBr + CO2 + H2O
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The reaction of caesium hydrogencarbonate and hydrogen bromide yields caesium bromide, carbon dioxide, and water (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 caesium hydrogencarbonate and hydrogen bromide
General equation
- Salt of weak acidBrønsted base + Strong acidBrønsted acid ⟶ Salt of strong acidConjugate base + Acidic oxide + H2OConjugate acid
Oxidation state of each atom
- Reaction of caesium hydrogencarbonate and hydrogen bromide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsHCO3 | Caesium hydrogencarbonate | 1 | Brønsted base | Salt of weak acid |
| HBr | Hydrogen bromide | 1 | Brønsted acid | Strong acid |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsBr | Caesium bromide | 1 | Conjugate base | Salt of strong acid |
| CO2 | Carbon dioxide | 1 | – | Acidic oxide |
| H2O | Water | 1 | Conjugate acid | Water |
Thermodynamic changes
Changes in standard condition
- Reaction of caesium hydrogencarbonate and hydrogen bromide
| 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 | −82.6 | – | – | – |
per 1 mol of | −82.6 | – | – | – |
per 1 mol of | −82.6 | – | – | – |
per 1 mol of | −82.6 | – | – | – |
per 1 mol of | −82.6 | – | – | – |
per 1 mol of | −82.6 | – | – | – |
Changes in aqueous solution (1)
- Reaction of caesium hydrogencarbonate and hydrogen bromide◆
ΔrG −44.72 kJ/mol K 6.83 × 107 pK −7.83
| 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 | 12.66 | −44.72 | 192.4 | – |
per 1 mol of | 12.66 | −44.72 | 192.4 | – |
per 1 mol of | 12.66 | −44.72 | 192.4 | – |
per 1 mol of | 12.66 | −44.72 | 192.4 | – |
per 1 mol of | 12.66 | −44.72 | 192.4 | – |
per 1 mol of | 12.66 | −44.72 | 192.4 | – |
Changes in aqueous solution (2)
- Reaction of caesium hydrogencarbonate and hydrogen bromide◆
ΔrG −36.34 kJ/mol K 2.33 × 106 pK −6.37
| 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 | −7.63 | −36.34 | 96.3 | – |
per 1 mol of | −7.63 | −36.34 | 96.3 | – |
per 1 mol of | −7.63 | −36.34 | 96.3 | – |
per 1 mol of | −7.63 | −36.34 | 96.3 | – |
per 1 mol of | −7.63 | −36.34 | 96.3 | – |
per 1 mol of | −7.63 | −36.34 | 96.3 | – |
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 |
|---|---|---|---|---|
| CsHCO3 (cr) | -966.1[1] | – | – | – |
| CsHCO3 (ai) | -950.27[1] | -878.78[1] | 224.3[1] | – |
| HBr (g) | -36.40[1] | -53.45[1] | 198.695[1] | 29.142[1] |
| HBr (ai) | -121.55[1] | -103.96[1] | 82.4[1] | -141.8[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas
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 |
|---|---|---|---|---|
| CsBr (cr) | -405.81[1] | -391.41[1] | 113.05[1] | 52.93[1] |
| CsBr (g) | -209.2[1] | -241.0[1] | 267.43[1] | 37.07[1] |
| CsBr (ai) | -379.82[1] | -395.97[1] | 215.48[1] | – |
| CO2 (g) | -393.509[1] | -394.359[1] | 213.74[1] | 37.11[1] |
| CO2 (ao) | -413.80[1] | -385.98[1] | 117.6[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] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (ao):Un-ionized aqueous solution, (l):Liquid
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°, -966.1 kJ · mol−1
- ^ ΔfH°, -950.27 kJ · mol−1
- ^ ΔfG°, -878.78 kJ · mol−1
- ^ S°, 224.3 J · K−1 · mol−1
- ^ ΔfH°, -36.40 kJ · mol−1
- ^ ΔfG°, -53.45 kJ · mol−1
- ^ S°, 198.695 J · K−1 · mol−1
- ^ Cp°, 29.142 J · K−1 · mol−1
- ^ ΔfH°, -121.55 kJ · mol−1
- ^ ΔfG°, -103.96 kJ · mol−1
- ^ S°, 82.4 J · K−1 · mol−1
- ^ Cp°, -141.8 J · K−1 · mol−1
- ^ ΔfH°, -405.81 kJ · mol−1
- ^ ΔfG°, -391.41 kJ · mol−1
- ^ S°, 113.05 J · K−1 · mol−1
- ^ Cp°, 52.93 J · K−1 · mol−1
- ^ ΔfH°, -209.2 kJ · mol−1
- ^ ΔfG°, -241.0 kJ · mol−1
- ^ S°, 267.43 J · K−1 · mol−1
- ^ Cp°, 37.07 J · K−1 · mol−1
- ^ ΔfH°, -379.82 kJ · mol−1
- ^ ΔfG°, -395.97 kJ · mol−1
- ^ S°, 215.48 J · K−1 · mol−1
- ^ ΔfH°, -393.509 kJ · mol−1
- ^ ΔfG°, -394.359 kJ · mol−1
- ^ S°, 213.74 J · K−1 · mol−1
- ^ Cp°, 37.11 J · K−1 · mol−1
- ^ ΔfH°, -413.80 kJ · mol−1
- ^ ΔfG°, -385.98 kJ · mol−1
- ^ S°, 117.6 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