Thermal Physics

AY2019/2020 Semester 1

This course introduces the laws and key concepts of thermodynamics. Thermodynamic equilibrium, functions of state, equations of state. Zeroth law. Perfect gases and absolute zero. First law of thermodynamics. Work, heat and internal energy. Adiabatic, reversible and irreversible changes. Heat engines, efficiency and Carnot cycles. Clausius? theorem and Second law of thermodynamics. Fundamental equation of thermodynamics. Phase changes and latent heat. Enthalpy, Helmholtz free energy and Gibb?s energy. Maxwell relations. Reciprocity theorem. Third law of thermodynamics. Kinetic theory - Maxwell distribution of velocities; pressure and effusion; mean free path; thermal conductivity and viscosity. Heat transport - conduction, radiation and convection as transport mechanisms; heat flux and heat diffusion equation; steady-state and initial-value problems; sinusoidally varying surface temperatures.