Stack Gas refers to what?

Stack Gas refers to what?

• A. Gases dissolved in steam
• B. Gases emitted from combustion processes
• C. Moisture in air
• D. Particulates from grinding

Answer: (B)

Stack gas is the gas stream that comes out of a stack after combustion, meaning the gases produced by burning fuel and any pollutants carried with that exhaust. This makes it the gases emitted from combustion processes—the flow you’d measure or treat in emissions monitoring and air‑quality control. It’s not just gases dissolved in steam or moisture in the air, and while stack gas can contain particulates, those are solids carried by the gas rather than the defining part of the stream.

Stack gas is the gas stream that comes out of a stack after combustion, meaning the gases produced by burning fuel and any pollutants carried with that exhaust. This makes it the gases emitted from combustion processes—the flow you’d measure or treat in emissions monitoring and air‑quality control. It’s not just gases dissolved in steam or moisture in the air, and while stack gas can contain particulates, those are solids carried by the gas rather than the defining part of the stream.