20.52. A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal efficiency of 40% (a) What is the rate of heat input to the plant? (b) The plant burns anthracite coal, which has a heat of combustion of 265 ×10^7 J / kg . How much coal does the plant use per day, if it operates continuously? (c) At what rate is heat ejected into the cool reservoir, which is the nearby river?(d) The river's temperature is 18.0^∘ C before it reaches the power plant and 18.5^∘ C after
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20.52. A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal efficiency of 40% (a) What is the rate of heat input to the plant? (b) The plant burns
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