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2 cards from this section. Quick, good the night before a test.
Define a closed system in your own words.
Think about examples like thermoses or sealed containers.
What types of energy exchange can occur in a closed system?
Remember: one involves thermal energy, the other involves force.
What can be exchanged in a closed system?
Consider what happens inside a sealed container.
True or False: A closed system allows mass to enter or leave.
Think about energy versus mass isolation.
Explain how a closed system can lead to energy conservation during a chemical reaction. Provide a detailed scenario.
Consider different internal energy states before and after the reaction.
Calculate the change in internal energy (∆U) if 200 J of work is done on the system and 50 J of heat is released.
Remember the sign conventions for heat and work.
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