Heat Of Formation Of Mgo

magnesium oxide

• Formula: MgO
• Molecular weight: forty.3044

• IUPAC Standard InChI: InChI=1S/Mg.O

  

• IUPAC Standard InChIKey: CPLXHLVBOLITMK-UHFFFAOYSA-N
• CAS Registry Number: 1309-48-4
• Chemic construction:
  This construction is also available as a 2d Mol file
• Other names: Magnesium monoxide
• Permanent link for this species. Employ this link for bookmarking this species for future reference.
• Information on this folio:
  • Condensed stage thermochemistry information
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Constants of diatomic molecules
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version iv.i
  • X-ray Photoelectron Spectroscopy Database, version 4.i
• Options:
  • Switch to calorie-based units

---

Condensed stage thermochemistry information

Get To: Summit, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity	Value	Units	Method	Reference	Comment
ΔfH°liquid	-532.61	kJ/mol	Review	Chase, 1998	Data last reviewed in December, 1974
Quantity	Value	Units	Method	Reference	Comment
Southward°liquid,1 bar	48.34	J/mol*K	Review	Chase, 1998	Data concluding reviewed in December, 1974
Quantity	Value	Units	Method	Reference	Comment
ΔfH°solid	-601.60 ± 0.30	kJ/mol	Review	Cox, Wagman, et al., 1984	CODATA Review value
ΔfH°solid	-601.24	kJ/mol	Review	Hunt, 1998	Data terminal reviewed in December, 1974
Quantity	Value	Units	Method	Reference	Comment
S°solid,1 bar	26.95 ± 0.15	J/mol*K	Review	Cox, Wagman, et al., 1984	CODATA Review value
Quantity	Value	Units	Method	Reference	Comment
South°solid	26.85	J/mol*K	Review	Hunt, 1998	Data last reviewed in Dec, 1974

Liquid Stage Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t^two + D*t³ + Eastward/tⁱⁱ
H° − H°_298.fifteen= A*t + B*t²/two + C*t³/3 + D*t⁴/four − Due east/t + F − H
South° = A*ln(t) + B*t + C*t²/2 + D*t^three/3 − E/(2*t²) + 1000
C_p = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*G)
t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K)	3105. - 5000.
A	66.94400
B	0.000000
C	0.000000
D	0.000000
E	0.000000
F	-580.9944
G	93.74712
H	-532.6106
Reference	Chase, 1998
Annotate	Data terminal reviewed in December, 1974

Solid Stage Rut Capacity (Shomate Equation)

C_p° = A + B*t + C*t^two + D*t³ + E/t²
H° − H°_298.fifteen= A*t + B*tⁱⁱ/ii + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − East/(2*t^two) + G
C_p = rut capacity (J/mol*Thou)
H° = standard enthalpy (kJ/mol)
South° = standard entropy (J/mol*K)
t = temperature (Thou) / 1000.

View plot Requires a JavaScript / HTML v canvas capable browser.

View table.

Temperature (Grand)	298. - 3105.
A	47.25995
B	5.681621
C	-0.872665
D	0.104300
East	-1.053955
F	-619.1316
Yard	76.46176
H	-601.2408
Reference	Chase, 1998
Comment	Data concluding reviewed in December, 1974

---

References

Become To: Top, Condensed stage thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Hunt, 1998
Chase, M.Due west., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph nine, 1998, 1-1951. [all data]

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, Five.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

---

Notes

Go To: Top, Condensed phase thermochemistry data, References

• Symbols used in this document:
  

  Due south°liquid,one bar	Entropy of liquid at standard conditions (ane bar)
  S°solid	Entropy of solid at standard conditions
  Southward°solid,1 bar	Entropy of solid at standard weather (i bar)
  ΔfH°liquid	Enthalpy of germination of liquid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality re-create of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. Nonetheless, NIST makes no warranties to that effect, and NIST shall not exist liable for any harm that may consequence from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.

Heat Of Formation Of Mgo,

Source: https://webbook.nist.gov/cgi/cbook.cgi?ID=C1309484&Mask=2

Posted by: bullockagavery96.blogspot.com

Share this post