In which one of the following is a higher percentage of carbon found?...
Anthracite has a higher percentage of Carbon. It has a carbon content of over 87% on a dry ash-free basis.
In which one of the following is a higher percentage of carbon found?...
**Explanation:**
In the given options, anthracite coal has the highest percentage of carbon. Let's understand why this is the case.
**1. Lignite Coal:**
Lignite coal is the lowest rank of coal and is often referred to as brown coal. It contains around 25-35% carbon. Lignite is formed by the compaction and heating of peat over millions of years. It is soft, brown, and has a high moisture content.
**2. Peat Coal:**
Peat coal is the precursor to coal and is formed from partially decomposed plant material. It contains around 45-55% carbon. Peat is brown and has a high moisture content. It is typically used as fuel in some regions.
**3. Bituminous Coal:**
Bituminous coal is a higher rank of coal and is widely used for electricity generation and as a fuel in industrial processes. It contains around 60-80% carbon. Bituminous coal is black and has a relatively high energy content.
**4. Anthracite Coal:**
Anthracite coal is the highest rank of coal and has the highest percentage of carbon. It contains around 86-98% carbon. Anthracite coal is hard, lustrous, and has a high energy content. It is primarily used for heating and is less commonly used for electricity generation.
**Conclusion:**
From the given options, anthracite coal has the highest percentage of carbon. This is because anthracite coal has undergone the greatest degree of coalification, resulting in the highest carbon content.