statistical mechanics

Studying Phase Transition With a Strain Gage

Student Manual

Many physical substances undergo phase transitions when subject to changes in environmental parameters. The transition of ice into water and water into steam are familiar examples. Similarly, chromium undergoes a phase transition at a specific temperature, called the N´eel temperature changing its magnetic order from the anti-ferromagnetic to the para-magnet state. This magnetic reordering is accompanied by a change in volume. In other words, the phase transition is a magneto-elastic phenomenon. In this experiment, we study the phase transition of chromium by directly measuring the volume change. Several important thermodynamical concepts will also be navigated.

Software Codecodes
Sample ResultsVoltage Vs Temperature
Voltage Vs No. of samples
Hardware ManualPrecision Instrumentation Amplifier AD624
Experiment Code2.7
Version15 Aug 2011

Further Readings and References


Pictorial Procedure

bridge chromium 1 DSCN0111 DSCN0113 setup

DETAIL

Tracking Brownian motion through video microscopy

Student Manual

This experiment is designed to study the Brownian motion of colloidal particles suspended in water, air or any other solvent.

Sample ResultsGray scale image of microspheres executing Brownian motion
Binary image showing microspheres as bright particles
Bandpass filtered image with background noise removed
Displacement square versus time graph of Brownian particles
Hardware ManualMotic BA210 Series Biological microscope Instruction Manual
Motic Image Plus Version 2.0 ML
Motic Live Imaging Module
Experiment Code2.11
Version2017-1

Further Readings and References


Pictorial Procedure


Setup-2.11TitlepicBrown2Brown4CallibrBrown3

DETAIL

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