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Pramana

, Volume 28, Issue 3, pp 269–275 | Cite as

The dielectric constant of the binary liquid systemn. heptane + methanol near its critical temperature

  • Y Jayalaxmi
  • S Guha
  • V C Vani
  • E S R Gopal
Condensed Matter Physics

Abstract

The electrical capacitance of the binary liquid mixturen. heptane + methanol at its critical composition is studied in both one-phase and two-phase regions. The two-phase capacitance data are used with the known functional forms for the order parameter and the diameter to obtainT c andc c with greater precision. This helps in reducing the number of unknown parameters in the functional form for the one-phase capacitance. The data show consistency with an alpha (α) exponent for dc/dt in the one phase region.

Keywords

Critical phenomena binary liquids critical exponents critical temperature critical capacitance 

PACS No.

64.70 

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Copyright information

© Indian Academy of Sciences 1987

Authors and Affiliations

  • Y Jayalaxmi
    • 1
  • S Guha
    • 1
  • V C Vani
    • 1
  • E S R Gopal
    • 1
  1. 1.Department of PhysicsIndian Institute of ScienceBangaloreIndia

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