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50 grams of warm water at 400 C is mixed with 65 grams of cool water...

50 grams of warm water at 400 C is mixed with 65 grams of cool water at 200 C, in a calorimeter. What is the final temperature of the mixture?

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Answer #1

From energy conservation, Heat gain by 200°C water is equal to the heat loss by 400°C water.

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