What term is used to describe a system that loses energy to objects that are not part of the system?

Explanation:

A closed system is a system in which there is no exchange of matter and energy between the system and surrounding.

For example, thermos is a closed system as there is no exchange of matter and energy from thermos to the surrounding or vice versa.

Whereas when there is exchange of energy and matter between the system and surrounding then it is known as open system.

For example, a cup of coffee is an open system as energy (heat) from the coffee goes to the surrounding.

Thus, we can conclude that a system that loses energy to objects that are not part of the system is called an open system.

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