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5Zn3P2 + 36HNO3 → 15Zn(NO3)2 + 10P + 3N2↑ + 18H2O

The reaction of zinc phosphide and nitric acid yields zinc nitrate, phosphorus, nitrogen, 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

General equation

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

Oxidation state of each atom

Reaction of zinc phosphide and nitric acid

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Zn3P2Zinc phosphide5
Reducing
Reducing
HNO3Nitric acid36
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Zn(NO3)2Zinc nitrate15
PPhosphorus10
Oxidized
N2Nitrogen3
Reduced
H2OWater18

Thermodynamic changes

Changes in standard condition (1)

Reaction of zinc phosphide and nitric acid
5Zn3P2Crystalline solid + 36HNO3Liquid
15Zn(NO3)2Crystalline solid + 10PCrystalline solidwhite + 3N2Gas + 18H2OLiquid
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
−3768
per 1 mol of
−753.6
per 1 mol of
−104.7
per 1 mol of
−251.2
per 1 mol of
−376.8
per 1 mol of
−1256
per 1 mol of
−209.3

Changes in standard condition (2)

Reaction of zinc phosphide and nitric acid
5Zn3P2Crystalline solid + 36HNO3Liquid
15Zn(NO3)2Crystalline solid + 10PCrystalline solidred, triclinic + 3N2Gas + 18H2OLiquid
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
−3944
per 1 mol of
−788.8
per 1 mol of
−109.6
per 1 mol of
−262.9
per 1 mol of
−394.4
per 1 mol of
−1315
per 1 mol of
−219.1

Changes in standard condition (3)

Reaction of zinc phosphide and nitric acid
5Zn3P2Crystalline solid + 36HNO3Liquid
15Zn(NO3)2Crystalline solid + 10PCrystalline solidblack + 3N2Gas + 18H2OLiquid
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
−4161
per 1 mol of
−832.2
per 1 mol of
−115.6
per 1 mol of
−277.4
per 1 mol of
−416.1
per 1 mol of
−1387
per 1 mol of
−231.2

Changes in standard condition (4)

Reaction of zinc phosphide and nitric acid
5Zn3P2Crystalline solid + 36HNO3Liquid
15Zn(NO3)2Crystalline solid + 10PAmorphous solidred + 3N2Gas + 18H2OLiquid
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
−3843
per 1 mol of
−768.6
per 1 mol of
−106.8
per 1 mol of
−256.2
per 1 mol of
−384.3
per 1 mol of
−1281
per 1 mol of
−213.5

Changes in aqueous solution

Reaction of zinc phosphide and nitric acid
5Zn3P2Crystalline solid + 36HNO3Ionized aqueous solution
15Zn(NO3)2Ionized aqueous solution + 10PCrystalline solidwhite + 3N2Gas + 18H2OLiquid
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
−3844
per 1 mol of
−768.8
per 1 mol of
−106.8
per 1 mol of
−256.3
per 1 mol of
−384.4
per 1 mol of
−1281
per 1 mol of
−213.6

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
Zn3P2 (cr)-473[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
Zn(NO3)2 (cr)-483.7[1]
Zn(NO3)2 (ai)-568.61[1]-369.57[1]180.7[1]-126[1]
Zn(NO3)2 (cr)
1 hydrate
-805.0[1]
Zn(NO3)2 (cr)
2 hydrate
-1110.27[1]
Zn(NO3)2 (cr)
4 hydrate
-1699.12[1]
Zn(NO3)2 (cr)
6 hydrate
-2306.64[1]-1772.71[1]456.9[1]323.0[1]
P (cr)
white
0[1]0[1]41.09[1]23.84[1]
P (cr)
red, triclinic
-17.6[1]-12.1[1]22.80[1]21.21[1]
P (cr)
black
-39.3[1]
P (am)
red
-7.5[1]
P (g)314.64[1]278.25[1]163.193[1]20.786[1]
N2 (g)0[1]0[1]191.61[1]29.125[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]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (am):Amorphous 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)