An Electrical Generating Plant Operates at a Boiler Temperature of 225°C

Multiple Choice

An electrical generating plant operates at a boiler temperature of 225°C and exhausts the unused heat into a nearby river at 25.0°C.If the generating plant has a power output of 850 megawatts (MW) and if the actual efficiency is 3/4 the theoretical efficiency,how much heat per second must be delivered to the boiler? (0°C = 273 K)

A) 8 470 MW
B) 4 230 MW
C) 2 120 MW
D) 2 820 MW
E) 1 690 MW