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(3) b0%A gas is compressed at a constant pressure of50 N/m2 from a volume of 10 m3 to a volume of4m3. Energy of 100 J then added to the gas byheating. Its internal energy isIncreased by 400 J (2) Increased by 200 JDecreased by 200 J3 Increased by 100 J (4)

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