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3. Matter and Energy - Part 1 of 2!
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3. Matter and Energy - Part 1 of 2!
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3. Matter and Energy / First Law of Thermodynamics / Problem 30
Problem 30
In a closed system, if the surroundings perform 40 J of work on the system and the system loses 10 J of heat, what is the net change in internal energy?
A
50 J decrease
B
30 J increase
C
30 J decrease
D
50 J increase
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