A battery harnesses a chemical reaction to extract energy in the form of useful electrical work. (a) A certain battery runs a toy truck and becomes partially discharged. In the process, it performs a total of 117.0 J of work on its immediate surroundings. It also gives off 3.0 J of heat, which the surroundings absorb. No other work or heat is exchanged with the surroundings. Compute q, w, and DU of the battery, making sure each quantity has the proper sign. (b) The same battery is now recharged exactly to its original condition. This requires 210.0 J of electrical work from an outside generator. Determine q for the battery in this process. Explain why q has the sign that it does.
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A battery harnesses a chemical reaction to extract energy in the form of useful electrical work. (a)...
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