A system delivers 222 J of heat to the surroundings while delivering 645 J of work. What is the change in the internal energy, ΔU, of the system?
A) -423 J
B) +423 J
C) -867 J
D) +867 J
E) -222 J

Question

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The Answer of A system delivers 222 J of heat to the surroundings while delivering 645 J of work. What is the change in the internal energy, ΔU, of the system?
A) -423 J
B) +423 J
C) -867 J
D) +867 J
E) -222 J

A System Delivers 222 J of Heat to the Surroundings