syllabus for physics 3rd semester pass course BSC

HEAT & THERMODYNAMICS  Total Marks-35 Pass Marks : 12 Group A   Heat Platinum resistance thermometer, thermocou...

HEAT & THERMODYNAMICS 

Total Marks-35 Pass Marks : 12

Group A   Heat

Platinum resistance thermometer, thermocouple thermometer, specific heats of gases, determination of Cp by Electrical continuous Flow method, Cv by Joly’s Differential Steam calorimeter. 

Work done by a gas during isothermal and adiabatic expansion. Andrew experiment and importance of its results, Vander Waal’s equation of state, critical constants and their determination, Law of corresponding states. Kinetic theory of gases, pressure exerted by a gas, Maxwell’s law of distribution of velocities and its experimental verification, Most probable velocity, mean free path -simple deduction conucition and diffusion, Brownian movement.  Expression for Avogadro’s number. 

Thermal conductivity and diffusivity, rectilinear flow of heat, Ingen Hanusz’s experiment.     Determination of conductivity- Searle’s method.  

Group B  Thermodynamics

Thermodynamics : basic concepts, first law of thermodynamics and its application, indicator diagram, reversible and irreversible process. Second law of thermodynamics, Carnot’s cycle. entropy- its properties and physical interpretation, Entropy changes during reversible and irreversible process. 

Radiation: Nature of radiant heat, emissive and absorptive power, prevost’s theory of heat exchange, Kirchhoff’s law (simple deduction), Black body radiation, Stefan-Boltzmann law, Planck’s formula for black body radiation (elementary idea).

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