A System Delivers 222 J of Heat to the Surroundings

question 63

Multiple Choice

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

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