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The overall efficiency of a power plant is 40%. It burns anthracite coal at 200 lb per second, and anthracite has a heating value of

The overall efficiency of a power plant is 40%. It burns anthracite coal at 200 lb per second, and anthracite has a heating value of 14200 kJ per lb. How many kJ of energy were not converted to electrical energy per second? Group of answer choices 1.704 x 106 2.301 x 106 5.94 x 105 3.61 x 104

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