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Ca(CN)2 + 4H2O ๐Ÿ’งโšกโ†’ CaCO3 + N2โ†‘ + COโ†‘ + 4H2โ†‘

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Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Calcium cyanide + 4H2OWater
๐Ÿ’งโšก
โŸถ
CaCO3Calcium carbonate + N2โ†‘Nitrogen + COโ†‘Carbon monoxide + 4H2โ†‘Hydrogen

Electrolysis of aqueous calcium cyanide yields calcium carbonate, nitrogen, carbon monoxide, 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

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Calcium cyanide + 4H2OWater
๐Ÿ’งโšก
โŸถ
CaCO3Calcium carbonate + N2โ†‘Nitrogen + COโ†‘Carbon monoxide + 4H2โ†‘Hydrogen

General equation

Electrolysis of aqueous solution with water as oxidizing agent
Miscible with water/Very soluble in water/Soluble in waterReducing agent + H2OOxidizing agent
๐Ÿ’งโšก
โŸถ
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Electrolysis of aqueous calcium cyanide with water as oxidizing agent

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Ca(CN)2Calcium cyanide1
Reducing
Soluble in water
H2OWater4
Oxidizing
Water

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaCO3Calcium carbonate1
Oxidized
โ€“
N2Nitrogen1
Oxidized
โ€“
COCarbon monoxide1
โ€“
โ€“
H2Hydrogen4
Reduced
โ€“

Thermodynamic changes

Changes in standard condition

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Crystalline solid + 4H2OLiquid
๐Ÿ’งโšก
โŸถ
CaCO3Crystalline solid + N2โ†‘Gas + COโ†‘Gas + 4H2โ†‘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
10.2โ€“โ€“โ€“
per 1 mol of
10.2โ€“โ€“โ€“
per 1 mol of
2.55โ€“โ€“โ€“
per 1 mol of
10.2โ€“โ€“โ€“
per 1 mol of
10.2โ€“โ€“โ€“
per 1 mol of
10.2โ€“โ€“โ€“
per 1 mol of
2.55โ€“โ€“โ€“

Changes in aqueous solution (1)

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Aqueous solution + 4H2OLiquid
๐Ÿ’งโšก
โŸถ
CaCO3Crystalline solid + N2โ†‘Gas + COโ†‘Gas + 4H2โ†‘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
63.8โ€“โ€“โ€“
per 1 mol of
63.8โ€“โ€“โ€“
per 1 mol of
15.9โ€“โ€“โ€“
per 1 mol of
63.8โ€“โ€“โ€“
per 1 mol of
63.8โ€“โ€“โ€“
per 1 mol of
63.8โ€“โ€“โ€“
per 1 mol of
15.9โ€“โ€“โ€“

Changes in aqueous solution (2)

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Aqueous solution + 4H2OLiquid
๐Ÿ’งโšก
โŸถ
CaCO3Crystalline solid + N2โ†‘Gas + COโ†‘Gas + 4H2โ†‘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
47.0โ€“โ€“โ€“
per 1 mol of
47.0โ€“โ€“โ€“
per 1 mol of
11.8โ€“โ€“โ€“
per 1 mol of
47.0โ€“โ€“โ€“
per 1 mol of
47.0โ€“โ€“โ€“
per 1 mol of
47.0โ€“โ€“โ€“
per 1 mol of
11.8โ€“โ€“โ€“

Changes in aqueous solution (3)

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Aqueous solution + 4H2OLiquid
๐Ÿ’งโšก
โŸถ
CaCO3Crystalline solid + N2โ†‘Gas + COโ†‘Un-ionized aqueous solution + 4H2โ†‘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
53.3โ€“โ€“โ€“
per 1 mol of
53.3โ€“โ€“โ€“
per 1 mol of
13.3โ€“โ€“โ€“
per 1 mol of
53.3โ€“โ€“โ€“
per 1 mol of
53.3โ€“โ€“โ€“
per 1 mol of
53.3โ€“โ€“โ€“
per 1 mol of
13.3โ€“โ€“โ€“

Changes in aqueous solution (4)

Electrolysis of aqueous calcium cyanide with water as oxidizing agent
Ca(CN)2Aqueous solution + 4H2OLiquid
๐Ÿ’งโšก
โŸถ
CaCO3Crystalline solid + N2โ†‘Gas + COโ†‘Un-ionized aqueous solution + 4H2โ†‘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
36.5โ€“โ€“โ€“
per 1 mol of
36.5โ€“โ€“โ€“
per 1 mol of
9.13โ€“โ€“โ€“
per 1 mol of
36.5โ€“โ€“โ€“
per 1 mol of
36.5โ€“โ€“โ€“
per 1 mol of
36.5โ€“โ€“โ€“
per 1 mol of
9.13โ€“โ€“โ€“

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
Ca(CN)2 (cr)-184.5[1]โ€“โ€“โ€“
Ca(CN)2 (aq)-238.1[1]โ€“โ€“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]
* (cr):Crystalline solid, (aq):Aqueous solution, (l):Liquid, (g):Gas

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
CaCO3 (cr)-1207.13[1]-1127.75[1]88.7[1]81.25[1]
CaCO3 (ai)-1219.97[1]-1081.39[1]-110.0[1]โ€“
N2 (g)0[1]0[1]191.61[1]29.125[1]
CO (g)-110.525[1]-137.168[1]197.674[1]29.142[1]
CO (ao)-120.96[1]-119.90[1]104.6[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)