Answer:
The specific fluid dynamics question cannot be accurately answered due to insufficient contextual information and the absence of the relevant formulas necessary to compute the minimum passage length for particle removal.
Step-by-step explanation:
The student's question is related to the field of fluid mechanics, a branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.
Although the question seems to reference particle removal, likely referring to some sort of filtration or separation process, it does not provide enough contextual information or relevant formulas, making it impossible to compute the minimum passage length without additional information such as the velocity of the gas, the type of device used for particle removal, and the specific formula that correlates all these variables. Engineering principles are essential in these calculations, particularly when using particle dynamics and fluid flow equations to design and analyze the systems for particle removal.
Therefore, the precise answer cannot be determined from the given data alone, and more details are required to provide an accurate response.