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6Li2SO3 + 2HNO3 → 6Li2SO4 + N2↑ + H2

The reaction of lithium sulfite and nitric acid yields lithium sulfate, nitrogen, 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

General equation

Reaction of reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Li2SO3Lithium sulfite6
Reducing
Reducing
HNO3Nitric acid2
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Li2SO4Lithium sulfate6
Oxidized
N2Nitrogen1
Reduced
H2Hydrogen1
Reduced

Thermodynamic changes

Changes in standard condition

Reaction of lithium sulfite and nitric acid
6Li2SO3Crystalline solid + 2HNO3Liquid
6Li2SO4Crystalline solid + N2Gas + H2Gas
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
−1208.7
per 1 mol of
−201.45
per 1 mol of
−604.35
per 1 mol of
−201.45
per 1 mol of
−1208.7
per 1 mol of
−1208.7

Changes in aqueous solution (1)

Reaction of lithium sulfite and nitric acid
6Li2SO3Crystalline solid + 2HNO3Ionized aqueous solution
6Li2SO4Ionized aqueous solution + N2Gas + H2Gas
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
−1320.7
per 1 mol of
−220.12
per 1 mol of
−660.35
per 1 mol of
−220.12
per 1 mol of
−1320.7
per 1 mol of
−1320.7

Changes in aqueous solution (2)

Reaction of lithium sulfite and nitric acid
6Li2SO3Crystalline solid + 2HNO3Ionized aqueous solution
6Li2SO4Ionized aqueous solution + N2Gas + H2Un-ionized aqueous solution
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
−1324.9
per 1 mol of
−220.82
per 1 mol of
−662.45
per 1 mol of
−220.82
per 1 mol of
−1324.9
per 1 mol of
−1324.9

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
Li2SO3 (cr)-1177.0[1]
HNO3 (l)-174.10[1]-80.71[1]155.60[1]109.87[1]
HNO3 (g)-135.06[1]-74.72[1]266.38[1]53.35[1]
HNO3 (ai)-207.36[1]-111.25[1]146.4[1]-86.6[1]
HNO3 (l)
1 hydrate
-473.46[1]-328.77[1]216.90[1]182.46[1]
HNO3 (l)
3 hydrate
-1056.04[1]-811.09[1]346.98[1]325.14[1]
* (cr):Crystalline solid, (l):Liquid, (g):Gas, (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
Li2SO4 (cr)-1436.49[1]-1321.70[1]115.1[1]117.57[1]
Li2SO4 (ai)-1466.24[1]-1331.20[1]47.3[1]-155.6[1]
Li2SO4 (cr)
1 hydrate
-1735.5[1]-1565.5[1]163.6[1]151.08[1]
N2 (g)0[1]0[1]191.61[1]29.125[1]
H2 (g)0[1]0[1]130.684[1]28.824[1]
H2 (ao)-4.2[1]17.6[1]577[1]
* (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)