The SI Unit for the Diffusion Coefficient Is M²/s,but Older

question 36

Multiple Choice

The SI unit for the diffusion coefficient is m²/s,but older texts sometimes report diffusion coefficients in units of in²/min.What is the value of a diffusion coefficient of 21.3 in²/min expressed in SI units? (2.54 cm = 1 in exactly)

• A) 9.02 × 10^-3 m²/s
• B) 3.25 × 10⁵ m²/s
• C) 14.0 m²/s
• D) 5.50 × 10² m²/s
• E) 2.29 × 10^-4 m²/s

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Definitions:

Control Limits

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Operator

An individual or entity responsible for controlling machinery or systems, often within industrial or telecommunications settings.

Philip Crosby

An influential quality management expert best known for his philosophy that organizations should aim for "zero defects" to improve quality.

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A mathematical function that identifies all costs connected with poor quality and shows how these costs increase as product quality moves from what the customer wants.