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2H2 + NiSO4 ๐Ÿ”ฅโ†’ Ni + SO2 + 2H2O

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Reaction of hydrogen and nickel(II) sulfate
2H2Hydrogen + NiSO4Nickel(II) sulfate
๐Ÿ”ฅ
โŸถ
NiNickel + SO2Sulfur dioxide + 2H2OWater

The reaction of hydrogen and nickel(II) sulfate yields nickel, sulfur dioxide, and water (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

Reaction of hydrogen and nickel(II) sulfate
2H2Hydrogen + NiSO4Nickel(II) sulfate
๐Ÿ”ฅ
โŸถ
NiNickel + SO2Sulfur dioxide + 2H2OWater

General equation

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

Oxidation state of each atom

Reaction of hydrogen and nickel(II) sulfate

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
H2Hydrogen2
Reducing
Reducing
NiSO4Nickel(II) sulfate1
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
NiNickel1
Reduced
โ€“
SO2Sulfur dioxide1
Reduced
โ€“
H2OWater2
Oxidized
โ€“

Thermodynamic changes

Changes in standard condition

Reaction of hydrogen and nickel(II) sulfate
โ—†
ฮ”rGโˆ’14.8 kJ/mol
K3.92 ร— 102
pKโˆ’2.59
2H2Gas + NiSO4Crystalline solid
๐Ÿ”ฅ
โŸถ
NiCrystalline solid + SO2Gas + 2H2OLiquid
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
4.42โˆ’14.86521
per 1 mol of
2.21โˆ’7.403311
per 1 mol of
4.42โˆ’14.86521
per 1 mol of
4.42โˆ’14.86521
per 1 mol of
4.42โˆ’14.86521
per 1 mol of
2.21โˆ’7.403311

Changes in aqueous solution (1)

Reaction of hydrogen and nickel(II) sulfate
โ—†
ฮ”rGโˆ’19.4 kJ/mol
K2.50 ร— 103
pKโˆ’3.40
2H2Un-ionized aqueous solution + NiSO4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
NiCrystalline solid + SO2Gas + 2H2OLiquid
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
103.1โˆ’19.4โˆ’627โ€“
per 1 mol of
51.55โˆ’9.70โˆ’314โ€“
per 1 mol of
103.1โˆ’19.4โˆ’627โ€“
per 1 mol of
103.1โˆ’19.4โˆ’627โ€“
per 1 mol of
103.1โˆ’19.4โˆ’627โ€“
per 1 mol of
51.55โˆ’9.70โˆ’314โ€“

Changes in aqueous solution (2)

Reaction of hydrogen and nickel(II) sulfate
โ—†
ฮ”rGโˆ’19.8 kJ/mol
K2.94 ร— 103
pKโˆ’3.47
2H2Un-ionized aqueous solution + NiSO4Ionized aqueous solution
๐Ÿ”ฅ
โŸถ
NiCrystalline solid + SO2Un-ionized aqueous solution + 2H2OLiquid
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
77.0โˆ’19.8โˆ’714โ€“
per 1 mol of
38.5โˆ’9.90โˆ’357โ€“
per 1 mol of
77.0โˆ’19.8โˆ’714โ€“
per 1 mol of
77.0โˆ’19.8โˆ’714โ€“
per 1 mol of
77.0โˆ’19.8โˆ’714โ€“
per 1 mol of
38.5โˆ’9.90โˆ’357โ€“

Changes in aqueous solution (3)

Reaction of hydrogen and nickel(II) sulfate
โ—†
ฮ”rGโˆ’6.4 kJ/mol
K1.32 ร— 101
pKโˆ’1.12
2H2Un-ionized aqueous solution + NiSO4Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
NiCrystalline solid + SO2Gas + 2H2OLiquid
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
89.2โˆ’6.4โˆ’718โ€“
per 1 mol of
44.6โˆ’3.2โˆ’359โ€“
per 1 mol of
89.2โˆ’6.4โˆ’718โ€“
per 1 mol of
89.2โˆ’6.4โˆ’718โ€“
per 1 mol of
89.2โˆ’6.4โˆ’718โ€“
per 1 mol of
44.6โˆ’3.2โˆ’359โ€“

Changes in aqueous solution (4)

Reaction of hydrogen and nickel(II) sulfate
โ—†
ฮ”rGโˆ’6.8 kJ/mol
K1.55 ร— 101
pKโˆ’1.19
2H2Un-ionized aqueous solution + NiSO4Un-ionized aqueous solution
๐Ÿ”ฅ
โŸถ
NiCrystalline solid + SO2Un-ionized aqueous solution + 2H2OLiquid
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
63.1โˆ’6.8โˆ’804โ€“
per 1 mol of
31.6โˆ’3.4โˆ’402โ€“
per 1 mol of
63.1โˆ’6.8โˆ’804โ€“
per 1 mol of
63.1โˆ’6.8โˆ’804โ€“
per 1 mol of
63.1โˆ’6.8โˆ’804โ€“
per 1 mol of
31.6โˆ’3.4โˆ’402โ€“

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
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]โ€“
NiSO4 (cr)-872.91[1]-759.7[1]92[1]138[1]
NiSO4 (ai)-963.2[1]-790.3[1]-108.8[1]โ€“
NiSO4 (ao)-949.3[1]-803.3[1]-18.0[1]โ€“
NiSO4 (cr)
4 hydrate
-2104.1[1]โ€“โ€“โ€“
NiSO4 (cr)
6 hydrate
ฮฑ, tetragonal, green
-2682.82[1]-2224.61[1]334.47[1]327.86[1]
NiSO4 (cr)
6 hydrate
ฮฒ, monoclinic, blue
-2672.3[1]โ€“โ€“โ€“
NiSO4 (cr)
7 hydrate
-2976.33[1]-2461.83[1]378.94[1]364.59[1]
* (g):Gas, (ao):Un-ionized aqueous solution, (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
Ni (cr)0[1]0[1]29.87[1]26.07[1]
Ni (g)429.7[1]384.5[1]182.193[1]23.359[1]
SO2 (l)-320.5[1]โ€“โ€“โ€“
SO2 (g)-296.830[1]-300.194[1]248.22[1]39.87[1]
SO2 (ao)-322.980[1]-300.676[1]161.9[1]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, (g):Gas, (l):Liquid, (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)