Specific Heat of Al: Liquid vs Solid Phases

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SUMMARY

The specific heat of aluminum (Al) varies significantly between its solid and liquid phases. At 20°C (293K), the specific heat of solid aluminum is approximately 900 J/kg-K, while it increases to 949 J/kg-K at 400K, 1033 J/kg-K at 600K, and reaches 1146 J/kg-K at 800K. This variation is attributed to changes in atomic structure and bonding as aluminum transitions from solid to liquid. Key references include "Introduction to Heat Transfer" by Incropera and DeWitt and various journal articles detailing thermophysical properties.

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  • Understanding of thermodynamics principles
  • Familiarity with specific heat capacity concepts
  • Knowledge of phase transitions in materials
  • Access to scientific literature and databases
NEXT STEPS
  • Research "Thermophysical properties of liquid metals" for comparative analysis
  • Study "Enthalpy and heat capacity of aluminum" for detailed thermodynamic data
  • Examine "Heat capacity of liquid metals" for insights into liquid phase behavior
  • Explore the "International Journal of Thermophysics" for advanced studies on heat transfer
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Materials scientists, thermodynamics researchers, and engineers involved in heat transfer applications will benefit from this discussion.

pukb
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Does the value of specific heat change with phase?
If yes, why so and what are its values for Al in liquid and solid phase.
 
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See this - http://pubs.acs.org/doi/abs/10.1021/je60047a035

See this - http://hyperphysics.phy-astr.gsu.edu/hbase/tables/sphtt.html - at 20°C (293K), the value is about 900 J/kg-K.

Code:
Temp    c[SUB]p[/SUB]
  K      J/kg-K
 400      949
 600    1033
 800    1146
Ref: Incropera and DeWitt, Introduction to Heat Transfer, 2 ed, 1985, 1990., Appendix A

Gathers, G. R., International Journal of Thermophysics, Volume 4, Issue 3, pp.209-226
Thermophysical properties of liquid copper and aluminum
http://www.springerlink.com/content/k1101685551h7h26/

Richard Addison McDonald
Enthalpy, heat capacity, and heat of fusion of aluminum from 366.degree. to 1647.degree.K
J. Chem. Eng. Data, 1967, 12 (1), pp 115–118
http://pubs.acs.org/doi/abs/10.1021/je60032a037

Thomas W. Chapman
The heat capacity of liquid metals,
Materials Science and Engineering, Volume 1, Issue 1, May 1966, Pages 65-69, ISSN 0025-5416, 10.1016/0025-5416(66)90012-7.
(http://www.sciencedirect.com/science/article/pii/0025541666900127)

One might be able to find the journal articles in the university library.
 

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