A system undergoes a process such that 200 kJ of work is done on the system while 400 kJ of heat leaves the system. What is the change in the internal energy of the system?
A) 400 kJ
B) 200 kJ
C) ?200 kJ
D) ?400 kJ
C) ?200 kJ
Q- W = ?U. - 400 - (-200) = ?u. ? ?u = ?200 kJ
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