Heat Capacity_Part_1

Heat Capacity_Part_1 - Theoretical calculation of the heat...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MSE 3050, Phase Diagrams and Kinetics, Leonid Zhigilei Theoretical calculation of the heat capacity ¾ Principle of equipartition of energy ¾ Heat capacity of ideal and real gases ¾ Heat capacity of solids: Dulong-Petit, Einstein, Debye models ¾ Heat capacity of metals – electronic contribution Reading: Chapter 6.2 of Gaskell
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
MSE 3050, Phase Diagrams and Kinetics, Leonid Zhigilei Degrees of freedom and equipartition of energy For each atom in a solid or gas phase, three coordinates have to be specified to describe the atom’s position – a single atom has 3 degrees of freedom for its motion. A solid or a molecule composed of N atoms has 3N degrees of freedom. We can also think about the number of degrees of freedom as the number of ways to absorb energy. The theorem of equipartition of energy (classical mechanics) states that in thermal equilibrium the same average energy is associated with each independent degree of freedom and that the energy is ½ k B T. For the interacting atoms, e.g. liquid or solid, for each atom we have ½ kT for kinetic energy and ½ kT for
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Heat Capacity_Part_1 - Theoretical calculation of the heat...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online