1st year of post-compulsory secondary education
Heat engines and machines
J.L. San Emeterio
 HTENG 
All Teaching Units Print Home
2.2 The first law

The dots simulate molecules. We represent 0.1 moles per 10 molecules (we all know that in reality there are many more).

What is a machine?
A simple machine
An energy saving machine
Conclusions
Heat and mechanical energy
Joule's experiment
The first law of thermodynamics
Conclusions
The limitations of thermodynamics
Perpetual motion
The second law of thermodynamics
Conclusions
Heat engines
An ideal engine
A real engine
Conclusions
Evaluation