The percentage of carbon in bituminous coal is of the order ofa)20 – ...
Bituminous Coal: This is the most widely used coal and contains 50 to 85 percent carbon. It is dense, compact, and brittle and is usually black. Good bituminous coal is composed of alternate dull and bright bands. Its calorific value is very high due to the high proportion of carbon and low moisture content.
Anthracite Coal: This is the best quality of coal and contains over 85 percent carbon. It is very hard, compact, jet black coal having semi-metallic lustre. It ignites slowly and burns with a nice short blue flame.
Lignite ( Brown Coal): Lignite is lower-grade coal and contains about 35-50 percent carbon. It represents the intermediate stage in the alteration of woody matter into coal. Its colour varies from dark to black-brown.
Peat: This is the first stage of transformation of wood into coal and contains less than 35 percent carbon. It is seldom sufficiently compact to make a good fuel without compressing into bricks.
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The percentage of carbon in bituminous coal is of the order ofa)20 – ...
Introduction:
Bituminous coal is a type of coal that falls in the middle of the coal rank, between sub-bituminous coal and anthracite coal. It is commonly used as a fuel for electricity generation and in industrial applications. The percentage of carbon in bituminous coal is an important characteristic that determines its energy content and combustion properties.
Percentage of Carbon in Bituminous Coal:
The percentage of carbon in bituminous coal is relatively high compared to other components such as moisture, volatile matter, and ash. This is why it is considered a high-carbon coal. The exact percentage of carbon can vary depending on the specific coal deposit, but it typically falls within the range of 60-85%.
Reasoning:
1. Carbon Content: The carbon content in bituminous coal is high due to the geological processes that transform plant matter into coal. Over millions of years, the organic material in plants undergoes pressure and heat, which removes moisture and volatile components, leaving behind carbon-rich coal.
2. Energy Content: The high carbon content in bituminous coal contributes to its high energy content. When burned, carbon reacts with oxygen to release heat energy through combustion. This makes bituminous coal an efficient fuel source for electricity generation and industrial processes.
3. Other Components: While carbon is the dominant component in bituminous coal, it also contains other elements and compounds. These include hydrogen, oxygen, nitrogen, sulfur, and various minerals. The exact composition of these additional components can vary depending on the coal deposit.
4. Ranges of Carbon Percentage: The given options in the question provide ranges for the percentage of carbon in bituminous coal. Based on the information discussed, option 'D' (60-85%) is correct, as it encompasses the typical range for carbon content in bituminous coal.
Conclusion:
The percentage of carbon in bituminous coal is in the range of 60-85%. This high carbon content contributes to its energy content and makes it a valuable fuel source for various applications.