The initial internal energy of a system is 53.5 kJ.It performs 2.8 kJ of work and absorbs 6.9 kJ as heat.What is its final internal energy?
A) 57.6 kJ
B) 63.2 kJ
C) 43.8 kJ
D) 9.7 kJ
E) 4.1 kJ
Correct Answer:
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