(Thermo-)Dynamics of First Order Phase Transitions by using Specific Heat Measurements

Sujith, K S (2015) (Thermo-)Dynamics of First Order Phase Transitions by using Specific Heat Measurements. Masters thesis, Indian Institute of Science Education and Research Kolkata.

PDF (MS dissertation of Sujith K S) Sujith_MS_Thesis.pdf - Submitted Version Restricted to Repository staff only Download (3MB)

Abstract

In this project, the technique of Differential Scanning Calorimetry (DSC) is implemented for the temperature range 77 K - 300 K and is used to study the first order phase tran- sition of V2O3 which occurs at around 150 K. The technique involves measuring the instantaneous difference in temperatures of the sample and a reference sample while the temperature of the whole system is swept in the desired temperature range. Thermo- dynamic quantities such as specific heat and latent heat of transition can be found out from the DSC data, which in turn will give the entropy change and enthalpy changes of the first order phase transition. The dependence of the properties of phase transition such as the transition temperature and the latent heat on the rate of heating or cooling is studied.

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