What kind of system does not allow matter or energy to enter or exit?

1 Answer
May 29, 2017

An isolated system.

Explanation:

An isolated system does not allow any matter or energy to be exchanged.

A closed system allows energy (usually heat) to be exchanged but not matter.

An open system allows matter and energy to be freely exchanged.
https://www.slideshare.net/Thivyaapriya/chemistry-form-6-semester-2