Types of Systems

[Emily Orozco L4]

How do you determine is something is a closed system?

[RasikaObla_4I]

In a closed system, energy can exchange with the surroundings. An example is a sealed beaker of water.

[Niharika 1H]

A closed system can be changed through heat transfer and work only, while an open system can allow for energy and matter exchange.

[VLi_2B]

Can someone please give an example of an isolated system that is not a bomb calorimeter or a hydroflask?

[Jasleen Kahlon]

Open system: exchanges energy and matter with surroundings
Closed system: exchanges energy, but not matter, with surroundings
Isolated system: exchanges neither energy nor matter with surroundings

An example to help remember this is by thinking of cooking a liquid in a pot on a stove. If the lid is left off, it is an open system as it can exchange matter and energy with its surroundings. If you put a lid on it, it is a closed system, as it is still exchanging thermal energy but not matter. If the liquid is placed into an airtight thermos, it is similar to an isolated system.

There aren't too many other examples of isolated systems other than an airtight thermos or a bomb calorimeter because its nearly impossible to isolate anything entirely from exchanging energy.

[005206171]

Can someone please give an example of an isolated system that is not a bomb calorimeter or a hydroflask?

The universe since energy is conserved.

[smurphy1D]

Is pressure always Constant in a closed system? Is pressure constant in an open system too?

[rohun2H]

A closed system can exchange heat but not matter