coal

what are the pros of coal?

large amount of reserves inexpensive established technologies large existing infrastructure

what are cons of coal?

- emits pollution: sulfur dioxide nitrogen oxide carbon dioxide mercury

what does each pollutant cause?

- nitrogen oxide (NOx)- smog, and acid rain. - sulfur dioxide (SO2)- acid rain. - mercury- toxic metal, fetal.

identify the varieties of coal and there carbon content and efficiency.

- peat, lowest coal rank. not efficient, and has very low carbon content. - lignite, second lowest rank of coal, not very efficient and low carbon content. - sub-bituminous /bituminous, second highest rank, very efficient and has a great carbon content. -anthracite, highest rank of coal, the most efficient out of any other coal, and has the highest carbon content. (Higher Rank = Higher Carbon Content -Higher Carbon Content = Greater Energy Content -Higher Carbon Content = Cleaner Burn)

how does coal produce electricity?

1.coal is crushed to a fine dust 2.coal is burned in a boiler 3.chemical energy released from the hydrocarbon bonds is converted to heat 4.heat energy turns water to steam 5.high pressure steam turns a turbine 6.turbine turns an electric generator

where is anthracite mostly mined?

china

describe the formation of coal.

coal is formed from dead/decayed plants that are fossilized for millions of years and is applied heat and pressure.

how is energy in coal stored? how is it released?

energy of coal is stored in carbon bonds or hydrocarbons. it is released when burned.

Which energy source provides the most kilocalories of energy per gram of fuel?

natural gas, 11,000 kcal/g