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Coal is not just a rock; it is a combustible sedimentary rock made up primarily of carbon, along with various other elements. When coal is exposed to heat in the presence of oxygen, a chemical reaction known as combustion occurs. This process breaks down the carbon molecules in coal, releasing energy in the form of heat and light. Therefore, coal burns due to the combustion process, which releases the stored energy within its carbon structure.
What else can I help you with?
How hot does coal burn?
Coal can burn at temperatures ranging from 600 to 1300 degrees Celsius (1112 to 2372 degrees Fahrenheit) depending on the type of coal and the conditions of combustion.
How does coal go through the rock-cycle?
Coal forms from the remains of plants that have been buried in Earth's crust for millions of years. Over time, heat and pressure from the layers of rock above it compress the plant material, forming coal. This process of transformation from plant material to coal is part of the rock cycle, as coal is a type of sedimentary rock.
What happens when coal is burn without oxygen?
When coal is burned without oxygen, it undergoes a process called pyrolysis where it decomposes into volatile gases, tar, and char. This can produce useful byproducts such as charcoal and coal gas, which can be used in various industrial processes.
Is coal flammable?
Coal is flammable because we use coal for barbecues
What type of rock is coal?
Coal is a type of organic sedimentary rock formed from dead plants.
What if we put coal on ice and burn the coal?
it will burn it would probably burn at first and melt the ice and water does not encourage burning so the coal stops burning
What element in the air is needed for coal dust to burn?
Oxygen is the element in the air that is needed for coal dust to burn. When coal dust is exposed to oxygen and heat, it can ignite and burn.
Is anthracite coal a sedimentary rock?
No. Anthracite coal is a metamorphic rock.
Is coal related to rock?
Coal is a form of rock. It is an organically formed sedimentary rock.
What is the parent rock for anthracite coal?
Peat (not much of a rock).
Do you alter coal to use it?
When you burn coal you are using it not altering it.
What type of rock can coal be classified as?
Coal is classified as a sedimentary rock.
What kind of rock do you burn?
You can burn sedimentary rocks like shale or coal. However, it's important to note that burning rocks can release harmful gases and pollutants, so it's not recommended to burn rocks for energy or heat.
Is coal an igneous rock sedimentary rock or metamorphic rock?
Bituminous coal is consided a sedimentary rock. Anthracite coal is bituminous coal that has been metamorphosed by great pressure and heat and is considered a metamorphic rock.
Why is coal still a rock?
It is a metamorphic rock . Also the coal is sometimes considered a sedimentary rock.
Can friable rock burn easily?
It depends, really. A rock's friability is the ability of a rock to easily be broken into smaller pieces(easy in the sense of hitting it with your hand). Whether or not a rock can burn is based more off of a rock's composition. For example, coal will burn, quartz will not. Rocks made up of organic material(coal, peat, lignite, oil shale) will burn - hence, fuel. A rock can, though, be organic and friable. So its possible to have a friable rock that can burn. But ignition isn't dependent upon friability.
Is coal a sedimentary rocks?
Coal is a sedimentary rock. However, harder forms of coal, because of exposure to elevated temperature and pressure, are metamorphic rock.
