Concept — Total microscopic energy of a thermodynamic system.
Present in chapters
06·09·10
Linked atoms
40 linked atoms.
06 Centro di massa
- Proof of König’s theorem
- Internal kinetic energy of two balls
- Internal kinetic energy and temperature
- Internal energy of the system
- Worked example — Fictitious gas of two balls
- König’s theorem for kinetic energy
09 Teoria cinetica dei gas
- Complete energy balance
- Internal energy of an ideal gas
- Worked example — Helium in a braking lorry
- Worked example — Equipartition and degrees of freedom
- Degrees of freedom
- Internal energy is purely kinetic
- The Van der Waals equation
- Problem — Cylinder that falls and stops
- Problem — Internal energy of helium, monatomic and diatomic
- Problem — Internal energy of a monatomic gas
- Problem — Science fiction physics: gas in five dimensions
10 Trasformazioni irreversibili e bilancio energetico
- Compressed air heats up
- Nitrogen heated in a rigid cylinder
- Heat at constant volume (monatomic gas)
- Heat as a substance?
- Heat: from invisible fluid to the dance of energy accounts
- Different paths, same state
- Energy exchange diagram
- Two paths in the p-V plane
- Thermal equilibrium: solid + gas
- Free expansion into a vacuum
- The first law as an energy balance
- The bicycle pump
- Mixed problems: pistons, springs, gravity
- Heating with a movable piston (and atmosphere)
- Heating a gas at constant volume
- Heating under the piston
- Challenge: fast adiabatic pump