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4.15. One hundred kmol per hour of subcooled liquid at 300 K and 3 bar is superheated to 500 K in a steady-flow heat exchanger. Estimate the exchanger duty (in

kW) for one of the following: (a) Methanol, for which Tat = 368.0 K at 3 bar. (b) Benzene, for which Tsat = 392.3 K at 3 bar. c) Toluene, for which Tsat = 426.9 K at 3 bar.

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