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4CsHCO3 ๐Ÿ”ฅโ†’ 2Cs2CO3 + O2โ†‘ + 2CO2โ†‘ + 2H2โ†‘

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Decomposition of caesium hydrogencarbonate
4CsHCO3Caesium hydrogencarbonate
๐Ÿ”ฅ
โŸถ
2Cs2CO3Caesium carbonate + O2โ†‘Oxygen + 2CO2โ†‘Carbon dioxide + 2H2โ†‘Hydrogen

Decomposition of caesium hydrogencarbonate yields caesium carbonate, oxygen, carbon dioxide, and hydrogen (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:

Table of contents
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

Decomposition of caesium hydrogencarbonate
4CsHCO3Caesium hydrogencarbonate
๐Ÿ”ฅ
โŸถ
2Cs2CO3Caesium carbonate + O2โ†‘Oxygen + 2CO2โ†‘Carbon dioxide + 2H2โ†‘Hydrogen

General equation

Thermal decomposition with redox
Thermally decomposable substanceSelf redox agent
๐Ÿ”ฅ
โŸถ
ProductOxidation product + ProductReduction product
Thermal decomposition of oxoacid salt with redox
Oxoacid saltSelf redox agent
๐Ÿ”ฅ
โŸถ
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Decomposition of caesium hydrogencarbonate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
CsHCO3Caesium hydrogencarbonate4
Self redox agent
Thermally decomposable
Oxoacid salt

Products

Chemical formulaNameCoefficientTypeType in general
equation
Cs2CO3Caesium carbonate2
โ€“
โ€“
O2Oxygen1
Oxidized
โ€“
CO2Carbon dioxide2
โ€“
โ€“
H2Hydrogen2
Reduced
โ€“

Thermodynamic changes

Changes in standard condition

Decomposition of caesium hydrogencarbonate
4CsHCO3Crystalline solid
๐Ÿ”ฅ
โŸถ
2Cs2CO3Crystalline solid + O2โ†‘Gas + 2CO2โ†‘Gas + 2H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
798.0โ€“โ€“โ€“
199.5โ€“โ€“โ€“
per 1 mol of
399.0โ€“โ€“โ€“
per 1 mol of
798.0โ€“โ€“โ€“
per 1 mol of
399.0โ€“โ€“โ€“
per 1 mol of
399.0โ€“โ€“โ€“

Changes in aqueous solution (1)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG502.70 kJ/mol
K0.85 ร— 10โˆ’88
pK88.07
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Gas + 2CO2โ†‘Gas + 2H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
626.66502.70415.2โ€“
156.66125.67103.8โ€“
per 1 mol of
313.33251.35207.6โ€“
per 1 mol of
626.66502.70415.2โ€“
per 1 mol of
313.33251.35207.6โ€“
per 1 mol of
313.33251.35207.6โ€“

Changes in aqueous solution (2)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG537.9 kJ/mol
K0.58 ร— 10โˆ’94
pK94.24
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Gas + 2CO2โ†‘Gas + 2H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
618.3537.91308โ€“
154.6134.5327.0โ€“
per 1 mol of
309.1268.9654.0โ€“
per 1 mol of
618.3537.91308โ€“
per 1 mol of
309.1268.9654.0โ€“
per 1 mol of
309.1268.9654.0โ€“

Changes in aqueous solution (3)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG519.46 kJ/mol
K0.99 ร— 10โˆ’91
pK91.01
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Gas + 2CO2โ†‘Un-ionized aqueous solution + 2H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
586.08519.46222.9โ€“
146.52129.8755.73โ€“
per 1 mol of
293.04259.73111.5โ€“
per 1 mol of
586.08519.46222.9โ€“
per 1 mol of
293.04259.73111.5โ€“
per 1 mol of
293.04259.73111.5โ€“

Changes in aqueous solution (4)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG554.7 kJ/mol
K0.66 ร— 10โˆ’97
pK97.18
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Gas + 2CO2โ†‘Un-ionized aqueous solution + 2H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
577.7554.71116โ€“
144.4138.7279.0โ€“
per 1 mol of
288.9277.4558.0โ€“
per 1 mol of
577.7554.71116โ€“
per 1 mol of
288.9277.4558.0โ€“
per 1 mol of
288.9277.4558.0โ€“

Changes in aqueous solution (5)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG519.1 kJ/mol
K0.11 ร— 10โˆ’90
pK90.94
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Un-ionized aqueous solution + 2CO2โ†‘Gas + 2H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
615.0519.1320.9โ€“
153.8129.880.22โ€“
per 1 mol of
307.5259.6160.4โ€“
per 1 mol of
615.0519.1320.9โ€“
per 1 mol of
307.5259.6160.4โ€“
per 1 mol of
307.5259.6160.4โ€“

Changes in aqueous solution (6)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG554.3 kJ/mol
K0.78 ร— 10โˆ’97
pK97.11
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Un-ionized aqueous solution + 2CO2โ†‘Gas + 2H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
606.6554.31214โ€“
151.7138.6303.5โ€“
per 1 mol of
303.3277.1607.0โ€“
per 1 mol of
606.6554.31214โ€“
per 1 mol of
303.3277.1607.0โ€“
per 1 mol of
303.3277.1607.0โ€“

Changes in aqueous solution (7)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG535.9 kJ/mol
K0.13 ร— 10โˆ’93
pK93.89
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Un-ionized aqueous solution + 2CO2โ†‘Un-ionized aqueous solution + 2H2โ†‘Gas
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
574.4535.9128.7โ€“
143.6134.032.17โ€“
per 1 mol of
287.2267.964.35โ€“
per 1 mol of
574.4535.9128.7โ€“
per 1 mol of
287.2267.964.35โ€“
per 1 mol of
287.2267.964.35โ€“

Changes in aqueous solution (8)

Decomposition of caesium hydrogencarbonate
โ—†
ฮ”rG571.1 kJ/mol
K0.89 ร— 10โˆ’100
pK100.05
4CsHCO3Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
2Cs2CO3Ionized aqueous solution + O2โ†‘Un-ionized aqueous solution + 2CO2โ†‘Un-ionized aqueous solution + 2H2โ†‘Un-ionized aqueous solution
Standard enthalpy
of reaction
ฮ”rHยฐ
kJ ยท molโˆ’1		Standard
Gibbs energy
of reaction
ฮ”rGยฐ
kJ ยท molโˆ’1		Standard entropy
of reaction
ฮ”rSยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard heat
capacity of reaction
at constant pressure
ฮ”rCpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
per 1 mol of
Equation
566.0571.11021โ€“
141.5142.8255.3โ€“
per 1 mol of
283.0285.6510.5โ€“
per 1 mol of
566.0571.11021โ€“
per 1 mol of
283.0285.6510.5โ€“
per 1 mol of
283.0285.6510.5โ€“

Thermodynamic data of reactants

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
CsHCO3 (cr)-966.1[1]โ€“โ€“โ€“
CsHCO3 (ai)-950.27[1]-878.78[1]224.3[1]โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard enthalpy
of formation
ฮ”fHยฐ
kJ ยท molโˆ’1		Standard Gibbs
energy of
formation
ฮ”fGยฐ
kJ ยท molโˆ’1		Standard
molar entropy
Sยฐ
J ยท Kโˆ’1 ยท molโˆ’1		Standard molar
heat capacity at
constant pressure
Cpยฐ
J ยท Kโˆ’1 ยท molโˆ’1
Cs2CO3 (cr)-1139.7[1]-1054.3[1]204.47[1]123.85[1]
Cs2CO3 (ai)-1193.70[1]-1111.85[1]209.2[1]โ€“
Cs2CO3 (cr)
3 hydrate
-2048.1[1]โ€“โ€“โ€“
O2 (g)0[1]0[1]205.138[1]29.355[1]
O2 (ao)-11.7[1]16.4[1]110.9[1]โ€“
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]โ€“
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]โ€“
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)