Unfinished, heated wood emits which color smoke?

Unfinished, heated wood emits which color smoke?

• A. White smoke
• B. Brown smoke
• C. Black smoke
• D. Green smoke

Answer: (B)

Smoke color reveals what’s burning and how completely it’s burning. Unfinished wood, when heated, undergoes pyrolysis and releases a lot of tarry, volatile organic compounds. These byproducts don’t burn cleanly and mix with soot to form a brown, smoky plume. White smoke would mainly be steam from moisture, while black smoke indicates heavy, crude soot from a very incomplete or fuel-rich burn, and green smoke isn’t a typical result of wood combustion. So the brown hue best signals unfinished wood heating with tarry combustion products.

Smoke color reveals what’s burning and how completely it’s burning. Unfinished wood, when heated, undergoes pyrolysis and releases a lot of tarry, volatile organic compounds. These byproducts don’t burn cleanly and mix with soot to form a brown, smoky plume. White smoke would mainly be steam from moisture, while black smoke indicates heavy, crude soot from a very incomplete or fuel-rich burn, and green smoke isn’t a typical result of wood combustion. So the brown hue best signals unfinished wood heating with tarry combustion products.