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2H2 + BaCO3 → Ba(OH)2 + H2O + C

The reaction of hydrogen and barium carbonate yields barium hydroxide, water, and carbon (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

General equation

Reaction of reducing species and reducible species
Reducing speciesReducing agent + Reducible speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of hydrogen and barium carbonate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2Hydrogen2
Reducing
Reducing
BaCO3Barium carbonate1
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
Ba(OH)2Barium hydroxide1
Oxidized
H2OWater1
Oxidized
CCarbon1
Reduced

Thermodynamic changes

Changes in standard condition (1)

Reaction of hydrogen and barium carbonate
2H2Gas + BaCO3Crystalline solid
Ba(OH)2Crystalline solid + H2OLiquid + CCrystalline solidgraphite
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
−14.2
per 1 mol of
−7.10
per 1 mol of
−14.2
per 1 mol of
−14.2
per 1 mol of
−14.2
per 1 mol of
−14.2

Changes in standard condition (2)

Reaction of hydrogen and barium carbonate
2H2Gas + BaCO3Crystalline solid
Ba(OH)2Crystalline solid + H2OLiquid + CCrystalline soliddiamond
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
−12.3
per 1 mol of
−6.15
per 1 mol of
−12.3
per 1 mol of
−12.3
per 1 mol of
−12.3
per 1 mol of
−12.3

Changes in aqueous solution

Reaction of hydrogen and barium carbonate
2H2Un-ionized aqueous solution + BaCO3Crystalline solid
Ba(OH)2Crystalline solid + H2OLiquid + CCrystalline solidgraphite
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
−5.8
per 1 mol of
−2.9
per 1 mol of
−5.8
per 1 mol of
−5.8
per 1 mol of
−5.8
per 1 mol of
−5.8

Thermodynamic data of reactants

Chemical formulaStandard 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
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]
BaCO3 (cr)-1216.3[1]-1137.6[1]112.1[1]85.35[1]
BaCO3 (ai)-1214.78[1]-1088.59[1]-47.3[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (cr):Crystalline solid, (ai):Ionized aqueous solution

Thermodynamic data of products

Chemical formulaStandard 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
Ba(OH)2 (cr)-944.7[1]
Ba(OH)2 (g)-586[1]
Ba(OH)2 (cr)
1 hydrate
-1248.5[1]
Ba(OH)2 (cr)
3 hydrate
-1849.3[1]
Ba(OH)2 (cr)
8 hydrate
-3342.2[1]-2792.8[1]427[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]
C (cr)
graphite
0[1]0[1]5.740[1]8.527[1]
C (cr)
diamond
1.895[1]2.900[1]2.377[1]6.113[1]
C (g)716.682[1]671.257[1]158.096[1]20.838[1]
* (cr):Crystalline solid, (g):Gas, (l):Liquid

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)