1. Heat and thermodynamics Lesson 6.3

2. Thermodynamics It is the study of conversions between thermal energy and other forms of energy.

3. First Law of Thermodynamics The first law of thermodynamics states that energy is conserved

4. Second law of Thermodynamic The second law of thermodynamic states that thermal energy can flow from colder objects to hotter objects only of work is done on the system. Heat engine: is any device that converts heat into work.

5. Third Law of Thermodynamic The third law of thermodynamic states that absolute zero cannot be reached