MOL-015 · Real gases, liquids and solids Sample material

Thermal properties of solids

Thermal expansion and heat capacity of solids, the anomalous expansion of water, transition to the solid state, the triple point and first-order phase transitions, highly rarefied gases, producing and measuring vacuum.

Estimated time: 3 h 6 activities

Learning objective

Understand the laws of linear and volume thermal expansion and their microscopic cause.
Study the Dulong–Petit law for the heat capacity of solids and its decrease at low temperatures.
Master the phase diagram, the triple point and the features of first-order phase transitions.
Become familiar with rarefied gases, methods of producing and measuring vacuum, and its importance.

Expected outcomes

Calculates linear and volume expansion and thermal stresses.
Estimates specific heat capacity using the Dulong–Petit law and solves calorimetry problems.
Reads a phase diagram and applies the Clausius–Clapeyron equation.
Estimates the mean free path of molecules and the degree of vacuum, and explains how vacuum devices work.

Interactive modelThermal expansion of solids

Activities

Lecture
Lecture · 1 h 20 min · required
Problem solving on the heat capacity and specific heat capacity of solids
Practice · 1 h 20 min · required
Determination of the specific heat capacity of solids
Laboratory · 2 h 15 min · optional
Study of the temperature dependence of the linear expansion of a solid and determination of the coefficient of linear expansion
Laboratory · 2 h 15 min · optional
Producing and measuring vacuum
Self-study · 6 h · optional
Final test
Test · 20 min · required · pass ≥ 70%

Completion conditions

  • Lecture
  • Problem solving on the heat capacity and specific heat capacity of solids
  • Final test — at least 70%