Saturated water vapor at 50°C is to be condensed as it flows through a tube at a rate of 0.35 kg/s. The condensate leaves the tube as a saturated liquid at 50°C. The rate of heat transfer from the tube is
(a) 73 kJ/s (d) 834 kJ/s
(b) 980 kJ/s (e) 907 kJ/s
(c) 2380 kJ/s