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10 cards from this deck
Q=ΔU+WQ = \Delta U + WQ=ΔU+W
Energy added to system via heating or cooling
Change in internal energy of system
Work done by system on surroundings
System does work on surroundings (expansion)
Work is done on system (compression)
Energy enters the system
Energy leaves the system
Energy and matter can cross the boundary
No gas enters/leaves; energy may transfer
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