Question

In non-isolated systems, the energy transfers into or out of the system via several
ways, discuss these ways.

Answer 1

Ways of energy exchange with the non-isolated system are via work , heat and matter.

• Matter:- when system is closed no matter can cross the boundary of the system. But if system is open, matter can be exchanged with the system.
• Heat:- heat exchange can take place in both open and closed system with the surrounding.
• Work:- work is observed at the boundary of system so closed system can exchange work with surrounding while flow work exchange is associated with the open system.