What is coal made of?
Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.
What is Coals molar mass?
Coal. 125612-26-2. Alumanylidynecobalt. Molecular Weight. 85.91473.
What molecules make up coal?
The organic compounds in coal are composed of the elements carbon, hydrogen, oxygen, nitrogen, sulfur, and trace amounts of a variety of other elements.
Is coal an alkane?
Branched alkanes and cycloalkanes burn more evenly than straight-chain alkanes. Short alkanes (C4H10) burn more evenly than long alkanes (C7H16). Alkenes burn more evenly than alkanes….Petroleum and Coal.
|The Chemistry of Petroleum Products
|The Chemistry of Coal
Is coal still being formed?
Coal is very old. The formation of coal spans the geologic ages and is still being formed today, just very slowly. Below, a coal slab shows the footprints of a dinosaur (the footprints where made during the peat stage but were preserved during the coalification process).
Why is coal bad for the environment?
Several principal emissions result from coal combustion: Sulfur dioxide (SO2), which contributes to acid rain and respiratory illnesses. Nitrogen oxides (NOx), which contribute to smog and respiratory illnesses. Particulates, which contribute to smog, haze, and respiratory illnesses and lung disease.
Is coal same as charcoal?
Coal is a natural mineral that forms over the span of millions of years while charcoal is a manufactured product created from wood. While coal in its natural state is never used alone in a barbeque or smoker, it is commonly added to charcoal briquettes to increase the energy density.
Why is coal the dirtiest fossil fuel?
Coal combustion releases sulfur dioxide (SO2) and nitrogen oxides (NOx), which react with water and oxygen to form acid rain. Acid rain corrodes buildings and structures and acidifies freshwater environments, damaging aquatic ecosystems (5).
Where is coal found?
Coal is mainly found in three regions: the Appalachian coal region, the Interior coal region, and the Western coal region (includes the Powder River Basin). The two largest coal mines in the United States are the North Antelope Rochelle and Black Thunder mines in Wyoming.
How old is most coal?
Because coal takes millions of years to develop and there is a limited amount of it, it is a nonrenewable resource. The conditions that would eventually create coal began to develop about 300 million years ago, during the Carboniferous period.
What year will we run out of coal?
Coal and natural gas are expected to last a little longer. If we continue to use these fossil fuels at the current rate without finding additional reserves, it is expected that coal and natural gas will last until 2060.
What is the chemical equation for burning coal?
The heart of a coal-fired power plant is a boiler, in which coal is burned by combustion to turn water into steam. The following equation shows what burning coal looks like chemically: C + O 2 –> CO 2.
What is the formula of coal gas?
It contains mostly methane, a simple chemical with the formula CH 4. That means there are four hydrogen atoms for each carbon atom, the maximum a single carbon atom can accommodate. Coal’s chemical formula is far more complex (as we’ll see later). That’s because, unlike natural gas, coal is a mixture of many thousands of types of chemicals.
What is the molecular formula for coal?
Coal doesn’t have any formula in general. It is a heterogeneous mixture. It contains more than half of its composition as co2. The other elements present in coal are hydrogen sulfur and nitrogen. In some cases the coal is written in chemical formula like CO.
What is coal gas formula?
If, however, hydrogen is the desired end-product, the coal gas (primarily the CO product) undergoes the water gas shift reaction where more hydrogen is produced by additional reaction with water vapor: CO + H 2 O → CO 2 + H 2. Although other technologies for coal gasification currently exist, all employ, in general, the same chemical processes.