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20.07.2022 - 00:39

A wood fire in a fireplace typically has a yellow flame whereas a (natural) gas fire (for a kitchen stove) is typically blue. Explain why the appearance of the wood flame is yellow whereas the gas flame most often appears blue.

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A wood fire in a fireplace typically has a yellow flame whereas a (natural) gas fire (for a kitchen stove) is typically blue. Explain why the appearance of the wood flame is yellow whereas the gas flame most often appears blue.

Answers (0)

Dortha April 10, 2023 в 22:48

The yellow flame in a wood fire is caused by incomplete combustion. Wood naturally contains impurities, such as sulfur and other compounds, that don't burn completely and produce a yellow glow. On the other hand, natural gas is mostly methane, which burns more cleanly and completely, producing a blue flame. The blue color in the gas flame indicates that all the fuel is being burned, without any impurities or incomplete combustion byproducts.

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