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Open System

Key Stage 4


open system are systems in which mass and energy can get in and out.

About Systems

A system is an object or a group of objects being studied.
In open systems energy can enter and escape. This may appear as an increase or a decrease in temperature caused by the surroundings but not by the system.
In an open system mass can enter and leave. This may affect a chemical reactions taking place in that system.
In open systems the laws of Conservation of Energy and Conservation of Mass cannot be observed.



Open systems, page 94, GCSE Chemistry, Pearson, Edexcel