Burning is a process of chemical reaction that leads to the release of energy in the form of heat and light. While both candles and coal undergo the process of burning, there are significant differences in the way they burn and the byproducts they produce.


Candles are made of wax, which is a hydrocarbon material. When a candle is lit, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick, where it is vaporized by the heat of the flame. The vapors react with oxygen in the air to produce heat, light, carbon dioxide, and water vapor.

Coal, on the other hand, is a fossil fuel that is formed from the remains of plants that died millions of years ago. When coal is burned, it is first heated to the point where it releases volatile gases, such as methane and carbon monoxide. These gases then react with oxygen in the air to produce heat, light, carbon dioxide, and water vapor.


Coal has a much higher energy density than wax, meaning it produces more heat per unit of mass. This makes it a more efficient fuel for heating buildings and generating electricity. Candles, while they produce some heat, are primarily used for their aesthetic value.


Burning coal produces a significant amount of air pollution, including sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants can cause respiratory problems, acid rain, and climate change. Candles, on the other hand, produce less pollution, but they do generate some carbon dioxide, which is a greenhouse gas that contributes to climate change.


In summary, both candles and coal undergo the process of burning, but there are significant differences in the way they burn and the byproducts they produce. Coal produces more heat and is used primarily as fuel, while candles are used for their aesthetic value. Coal also produces more pollution and contributes to climate change, while candles produce less pollution but still generate some carbon dioxide.

Candle burns with a flame but coal does not burns with a flame also coal is a carbon product and its burning is harmful for environment but candle is made from wax its burning is not as much harmful as burning of coal .
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