A System Initially Has an Internal Energy U of 504

question 42

Multiple Choice

A system initially has an internal energy U of 504 J. It undergoes a process during which it releases 111 J of heat energy to the surroundings, and does work of 222 J. What is the final energy of the system, in J?

• A) 171 J
• B) 393 J
• C) 504 J
• D) 615 J
• E) 837 J

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Definitions:

Dream Characters

Figurative representations of people, whether known or imagined, encountered during dream states.

Defense Mechanisms

Psychological strategies used unconsciously to protect oneself from anxiety arising from unacceptable thoughts or feelings.

Coping Strategies

Techniques or methods that people use to manage or overcome difficulties and stress.

Recurrent Dreams

Repetitive dreams that occur over a period of time, often reflecting deep emotions or unresolved issues.