What is the change in internal energy of the air within the piston?   The air within a piston equipped with a cylinder absorbs 555 J of heat and expands from an initial volume of 0.10 L to a final volume of 0.87 Lagainst an external pressure of 1.0 atm.

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What is the change in internal energy of the air within the piston?  

The air within a piston equipped with a cylinder absorbs 555 J of heat and expands from an initial volume of 0.10 L to a final volume of 0.87 Lagainst an external pressure of 1.0 atm.

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