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absorbs energy, and it is negative if the system releases energy. (Figure 1) The total change in internal energy is the sum of the

absorbs energy, and it is negative if the system releases energy. (Figure 1) The total change in internal energy is the sum of the heat, q, and work, w: AE=q+w. Part B Figure AE, > 0 system. system 0 system. Surroundings E System Surroundings system

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