19.54 A 250-g sample of water at 55°C is mixed with 250 g of water at 10°C. Find the entropy change (J/K) for the whole system. (specific heat of water = 4184 J/kg·K)
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Since the masses and the specific heat of the two water samples are the same, the final temperature will be the average of the initial temperatures. So, the final temperature (Tf) = (55°C + 10°C) / 2 = 32.5°C = 305.65 K Show more…
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