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ahrayia [7]
3 years ago
10

Fifteen joules of heat are added to a cylinder with a piston. The system uses 7 joules of energy to raise the piston upward. By

how much did the internal energy of the system increase?
Physics
1 answer:
r-ruslan [8.4K]3 years ago
4 0

Answer:

8 J

Explanation:

Heat = work + change in internal energy

Q = W + ΔU

15 J = 7 J + ΔU

ΔU = 8 J

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