Problem- A piston is expanded from 52.3 L to 56.0 L against an external pressure of 2.5 atm, and absorbs 0.347 kJ of heat in the process. Calculate the change in internal energy for the system. (Please illustrate the necessary math)
1) -937 J
2) +356 J
3) -590 J
4) + 1284 J
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