Steam condenses at 50°C on a 1.2-m-high and 2.4-m- wide vertical plate that is maintained at 30°C. The condensation heat transfer coefficient is
(a) 4260 W/m2·K
(b) 4780W/m2·K
(c) 5510 W/m2·K
(d) 6260 W/m2·K
(e) 6940 W/m2·K
(For water. use pl = 992.1 kg/m3, µl = 0.653 × 10−3 kg/m·s, kl = 0.631 W/m·K, cpl = 4179 J/kg·°C, hfg@Tsat = 2383 kJ/kg)
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