Gen Chem 2

The air within a piston equipped with a cylinder absorbs 555 J of heat and expands from an initial volume of 0.12 L to a final volume of 0.87 L against an external pressure of 1.0 atm.

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

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1. delta E = q + w
w = -p*delta v = -p*(V2-V1)

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2. 479

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