Human body can be both closed and open system.
Human body is closed system in sense that all its constituents are closed within human body and it can be open system in sense that the entire system includes both human body and its interacting environment.
- There is always temperature difference between the human body and the environment, the body absorb or emits heat.
- Open system can exchange energy and matter, example - water in an open beaker, human body
- Closed system can exchange only energy but not matter, example-boiling water in covered pan, air conditioner. -
- Isolated system can not exchange energy and matter, example-.thermos flask
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