AP Physics 2mediummcq1 pt
A gas absorbs 400 J of heat and does 150 J of work. Its internal energy change is
A.+250 J
B.+550 J
C.−250 J
D.−550 J
Explanation
Core Concept
ΔU = Q − W = 400 − 150 = +250 J.
Correct Answer
A+250 J
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