Problem: A system releases 672 kJ of heat and does 120 kJ of work on the surroundings.What is the change in internal energy of the system?

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The relationship between internal energy, heat, and work is shown in the following equation:

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Problem Details

A system releases 672 kJ of heat and does 120 kJ of work on the surroundings.

What is the change in internal energy of the system?

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