When 2.00 kJ of energy is transferred as heat to nitrogen in a cylinder fitted with a piston with an external pressure of 2.00 atm, the nitrogen gas expands from 2.00 to 5.00 L. What is the change in internal energy of this system? (1 L·atm = 0.1013 kJ) Group of answer choices
A. + 1.39 kJ
B. 0 - 0.608 kJ
C. + 2.61 kJ
D. - 2.61 kJ
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