Overview
This lecture explains the differences between open, closed, and isolated systems, focusing on how matter and energy transfer in each case.
Open System
- Both matter and energy can enter or leave an open system.
- Examples include an open container where gases and heat can move freely in and out.
Closed System
- Matter cannot enter or leave a closed system, but energy can.
- A sealed container allows heat energy to pass but not mass.
Isolated System
- Neither matter nor energy can enter or leave an isolated system.
- These systems are perfectly insulated, preventing any exchange with the surroundings.
System Review
- Open: matter and energy transfer allowed.
- Closed: only energy transfer allowed; matter transfer blocked.
- Isolated: no transfer of matter or energy allowed.
Key Terms & Definitions
- Open System — A system where both matter and energy can cross the boundary.
- Closed System — A system where energy can cross the boundary, but matter cannot.
- Isolated System — A system where neither matter nor energy can cross the boundary.
Action Items / Next Steps
- Review differences between system types for homework.
- Draw and label examples of each system for practice.