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Ahot toluene stream, which has mass flow rate of 8.0 kg/min, is cooled by drops from 90°ct passing through the heat exchanger. the cooling water stream has a mass flow rate of 10 kg/min and an inlet temperature of 20°c. given that the specific heats of toluene and water are 0.41 and 1.00 kcal/(kg"c), respectively, determine (a, 3%) the heat duty of the heat exchanger, (b, 390) the temperature of the cooling water leaving the heat exchanger, (c, 3%) the log mean temperature difference (or "driving force") for the heat exchange process, and (d, 4%) the ua value of the heat exchanger. assume a negligible heat loss to the surroundings. (e, 12%) if the flow configuration of the streams is switched from cocurrent to countercurrent, what would be the new outlet temperatures of both streams, assuming that the feed conditions and flow rates of both streams remain unchanged? hint: ua value stays the same.
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Ahot toluene stream, which has mass flow rate of 8.0 kg/min, is cooled by drops from 90°ct passing t...
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