A thermos contains 155 cm3 of coffee at 85degc. to cool, Ask an Expert

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A thermos contains 155 cm3 of coffee at 85°C. To cool the coffee, you drop two 13 g ice cubes into the thermos. The ice cubes are initially at 0°C and melt completely. What is the final temperature of the coffee? Treat the coffee as if it were water.

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