Question

Which of the following items can enter and exit an isolated system?

Answer 1

An isolated system does not allow any transfer of energy or matter in or out. Therefore, no items can enter or exit an isolated system.

Step-by-step explanation:

In physics, an isolated system is one that does not allow the transfer of either energy or matter in or out of the system. The very definition of an isolated system means that it is completely separated from its environment, such as a gas surrounded by immovable and thermally insulating walls. However, it is important to realize that a truly isolated system does not exist in reality, as there is always some level of interaction with the surroundings, no matter how minimal it may be. Consequently, nothing can enter or exit a theoretically isolated system; there is no exchange of energy or matter.

Answer 2

Neither energy nor matter can enter and exit an isolated system.

Step-by-step explanation:

There are three types of systems which refers to universe. They are

1. Open System : In an open system, both energy and matter have external interactions. Example:- boiling water in an open pan.

2. Closed system : In a closed system, only energy has interaction with surroundings. Example:- boiling water with a lid on the pan.

3. Isolated system : In an isolated system, neither energy-nor matter has external interactions with surroundings. Example : a thermos flask does not exchange energy and matter.

Hence, the correct option is (a) " neither energy nor matter ".