A closed system in thermodynamics is one that can transfer:
ANeither energy nor matter
BEnergy but not matter
CMatter but not energy
DBoth matter and energy
Answer & Solution
Correct answer: B. Energy but not matter
1. The system is the matter and its environment relevant to a particular case of energy transfer.
2. Everything outside of that system is called the surroundings.
3. A closed system is one that can transfer energy but not matter to its surroundings.
4. A stovetop system is open by contrast, because heat can be lost into the air.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 6 'Metabolism', sections 6.1-6.5_
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