Question: An electric adapter for a notebook computer (converting 110 volts to 19 volts) operates 10oC warmer than the surrounding temperature. Determine the sign (positive: 1;

An electric adapter for a notebook computer (converting 110 volts to 19 volts) operates 10oC warmer than the surrounding temperature. Determine the sign (positive: 1; negative: -1; none: 0) of
(a) Wext
(b) Q interactions.

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