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catdogworld
An open system is a system that freely exchanges energy and matter with its surroundings. For instance, when you are boiling soup in an open saucepan on a stove, energy and matter are being transferred to the surroundings through steam. Putting a lid on the saucepan makes the saucepan a closed system.
jcmunozzz22
A perfect example of an open system is a living organism such as a human being. We actively interact with our environment, which results in changes to both the environment and us.