A closed system in chemistry refers to a type of a thermodynamic system in which mass is conserved inside the system but energy enters and leaves the system freely. When both energy and matter can be exchanged between the system and its surroundings, the system is known as an open system. read more
A closed system is a concept used in thermodynamics (physics and engineering) and in chemistry. Closed System Definition A closed system is a type of thermodynamic system where mass is conserved within the boundaries of the system, but energy is allowed to freely enter or exit the system. read more