A closed system is one in whicha)mass does not cross boundaries of the...
Definition of a Closed System
A closed system is a thermodynamic system in which mass does not cross the boundaries of the system, though energy may do so.
Explanation
A closed system is a system that is isolated from its surroundings, in the sense that no mass can pass through its boundaries. However, energy can be transferred into or out of the system. For example, a sealed container of gas is a closed system. The gas particles are confined to the container and cannot escape, but the container itself can be heated or cooled to change the energy of the gas.
In a closed system, the total mass of the system remains constant, but the energy of the system can change due to work or heat transfer. This makes it an important concept in thermodynamics, as it allows researchers to study the behavior of a system without worrying about the effects of external mass flow.
Examples of Closed Systems
Some examples of closed systems include:
- A sealed container of gas
- A bomb calorimeter used to measure the heat of combustion of a substance
- A spacecraft in orbit around the Earth
- A piston-cylinder assembly used for thermodynamic analysis
Conclusion
In conclusion, a closed system is a thermodynamic system in which mass does not cross the boundaries of the system, though energy may do so. It is an important concept in thermodynamics, as it allows researchers to study the behavior of a system without worrying about the effects of external mass flow.
A closed system is one in whicha)mass does not cross boundaries of the...
In nonrelativistic classical mechanics, a closed system is a physical system that doesn't exchange any matter with its surroundings, and isn't subject to any net force whose source is external to the system. A closed system in classical mechanics would be considered an isolated system in thermodynamics.