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how much coal is required to run a watt light bulb in rwanda

how much coal is required to run a watt light bulb in rwanda

May 23 2019 · 741 million BTUs x 293 kilowatt hours per million BTUs 2168 kilowatt hours per ton of burned coal This means we need 040 tons or 800 pounds of coal to power our lightbulb for a year 876 kWh for a year of light ÷ 2168 kWh per ton of coal 040 tons of coal per year of light 040 tons 800 pounds Answer 800 pounds of coal

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