Thermodynamics and Statistical Physics
B.Sc. pt II course
B.Sc. pt II course
Syllabus | In classes | Links | References
Dates and timings:
Wednesday and Thursday, 08:00 AM – 09:00 AM (IST)
Starting date:
Revision of pre-requisites from August 3,
new course material from August 10, 2016
THERE WERE CLASSES TILL THE END OF JANUARY 2017, couldn't get updated on website.
Thermal and adiabatic interactions: Thermal interaction: Zeroth law of thermodynamics; System in thermal contact with a heat reservoir (canonical distribution); Energy fluctuations; Entropy of a system in a heat bath; Helmholtz free energy: Adiabatic interaction and enthalpy; General interaction and first law of thermodynamics; Infinitesimal general interaction' Gibb's free energy. Phase transitions; Clausius Clapeyron equation; Vapour pressure curve: Heat engine and efficiency of engine. Carnpt's Cycle; Thermodynamics scale as an absolute scale; Maxwell relations and their applications.
Production of law temperatures and applications: Joule Thomson expansion and J T coefficients for ideal as well as Vander Waal's gas, porous plug experiment, temperature inversion. Regenerative cooling, Cooling by adiabatic expansion and demagnetization; Liquid Helium. He I and He II, superfludity, Regrigeration through Helium dilution; Quest for absolute zero, Nernst heat theorem.
The distribution of molecular velocities: Distribution law of molecular velocities, most probable, average and r.m.s. velocities: Energy distribution function: effusion and molecular beam. Experimental verification of the Maxwell velocity distribution; The principle of equipartition of energy
Transport phenomena: Mean free path, distribution of free paths, cofficients of viscosity, thermal conductivity, diffusion and their interaction.
Classical Statistics: Validity of Classical approximation. Phase space, micro and macro states. Thermodynamics probability, relation between entropy and thermodynamic probability. Monoatomic ideal gas: Barometric equation; Specific heat capicity of diatomic gas; Heat capacity of solids.
Quantum Statistics: Black body radiation and failure of classical statistics. Postulates quantum statistics, indistinguishibility, wave function and exchange degeneracy, a priori-probability; Bose-Einsteion statistics and its distribution function' Planck distribution function and radiation formula; Fermi-Dirac statistics and its distribution function. contact ptential, thermionic emission; Specific heat anomaly of metals; Nuclear spin statistics (para and ortho-hydrogen).