Explain the Closed System - Thermodynamic
The system that can exchange energy with their surrounding but not the mass is known as the Closed System. So, the quantity of matter remains fixed. And the system is explained as control mass system.
The physical nature and chemical composition of the mass of the system might alter. Water may evaporate into steam or steam may condense into water. A chemical reaction may take place among two or more components of the closed system.