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2Na + NH4Cl → NaCl + NaH + NH3↑

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Reaction of sodium and ammonium chloride
2NaSodium + NH4ClAmmonium chloride
⟶
NaClSodium chloride + NaHSodium hydride + NH3↑Ammonia

The reaction of sodium and ammonium chloride yields sodium chloride, sodium hydride, and ammonia (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 sodium and ammonium chloride
2NaSodium + NH4ClAmmonium chloride
⟶
NaClSodium chloride + NaHSodium hydride + NH3↑Ammonia

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 sodium and ammonium chloride

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NaSodium2
Reducing
Reducing
NH4ClAmmonium chloride1
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClSodium chloride1
Oxidized
–
NaHSodium hydride1
Redoxed product
–
NH3Ammonia1
–
–

Thermodynamic changes

Changes in standard condition

Reaction of sodium and ammonium chloride
◆
ΔrG−231.18 kJ/mol
K3.17 × 1040
pK−40.50
2NaCrystalline solid + NH4ClCrystalline solid
⟶
NaClCrystalline solid + NaHCrystalline solid + NH3↑Gas
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
−199.11−231.18107.6−18.6
per 1 mol of
−99.555−115.5953.80−9.30
per 1 mol of
−199.11−231.18107.6−18.6
per 1 mol of
−199.11−231.18107.6−18.6
per 1 mol of
−199.11−231.18107.6−18.6
per 1 mol of
−199.11−231.18107.6−18.6

Changes in aqueous solution (1)

Reaction of sodium and ammonium chloride
◆
ΔrG−232.52 kJ/mol
K5.44 × 1040
pK−40.74
2NaCrystalline solid + NH4ClIonized aqueous solution
⟶
NaClIonized aqueous solution + NaHCrystalline solid + NH3↑Gas
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
−210.00−232.5275.6−18.5
per 1 mol of
−105.00−116.2637.8−9.25
per 1 mol of
−210.00−232.5275.6−18.5
per 1 mol of
−210.00−232.5275.6−18.5
per 1 mol of
−210.00−232.5275.6−18.5
per 1 mol of
−210.00−232.5275.6−18.5

Changes in aqueous solution (2)

Reaction of sodium and ammonium chloride
◆
ΔrG−242.57 kJ/mol
K3.14 × 1042
pK−42.50
2NaCrystalline solid + NH4ClIonized aqueous solution
⟶
NaClIonized aqueous solution + NaHCrystalline solid + NH3↑Un-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
−244.18−242.57−5.5–
per 1 mol of
−122.09−121.28−2.8–
per 1 mol of
−244.18−242.57−5.5–
per 1 mol of
−244.18−242.57−5.5–
per 1 mol of
−244.18−242.57−5.5–
per 1 mol of
−244.18−242.57−5.5–

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
Na (cr)0[1]0[1]51.21[1]28.24[1]
Na (g)107.32[1]76.761[1]153.712[1]20.786[1]
NH4Cl (cr)-314.43[1]-202.87[1]94.6[1]84.1[1]
NH4Cl (ai)-299.66[1]-210.52[1]169.9[1]-56.5[1]
* (cr):Crystalline solid, (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
NaCl (cr)-411.153[1]-384.138[1]72.13[1]50.50[1]
NaCl (g)-176.65[1]-196.66[1]229.81[1]35.77[1]
NaCl (ai)-407.27[1]-393.133[1]115.5[1]-90.0[1]
NaH (cr)-56.275[1]-33.46[1]40.016[1]36.401[1]
NaH (g)130.25[1]108.85[1]188.377[1]30.29[1]
NH3 (g)-46.11[1]-16.45[1]192.45[1]35.06[1]
NH3 (ao)-80.29[1]-26.50[1]111.3[1]–
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (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)