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When you get your oil changed (assume light oil), the mechanic adds your dirty and hot 4 quarts of oil to the recycling drum. If

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When you get your oil changed (assume "light oil"), the mechanic adds your dirty and hot 4 quarts of oil to the recycling drum. If your oil is 200 F, and the drum already contains 4 gallons of oil at room temperature (70 F), then: (a) What is the final temperature in the recycling drum? 96 F (b) What is the total change in entropy? -0.1786 Btu R

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