Open and closed systems
An open system (sometimes termed as a control volume) on the other hand is a region in the space defined by a boundary across (in/out/through) which matter may flow in addition to energy (in the form of heat and work).
Examples of closed systems
- Mixtures of water and steam in a closed vessel
- Gas expanding in a piston- cylinder
Examples of open systems
- Water entering boiler and leaving as steam
- Gases flowing through turbine
- Gas expanding from pressurized container, through a nozzle.
Example of isolated system:
- A thermo flask may be considered as approaching an isolated system.
- What is Thermodynamics ? Objectives of Thermodynamics
- What is the first law of thermodynamics ? Definition and Equation
- Enthalpy, Entropy and Internal Energy
- Pros and Cons of Solar energy
- What is substance in Thermodynamics