Question

Consider the following statements regarding Mass Transfer. Identify the INCORRECT statement.

• A. Mass transfer refers to mass in transit due to a species concentration gradient in a mixture
• B. Only one species is sufficient for mass transfer to occur
• C. The species concentration gradient is the driving potential for mass transfer
• D. Mass transfer by diffusion is analogous to heat transfer by conduction

Hint:

Mass transfer requires a concentration gradient of multiple species in a mixture, not just a single species.

Answer 1

The Correct Option is B

For mass transfer to occur, there must be a concentration gradient of at least two species in a mixture. If only one species is present, no mass transfer can happen. Therefore, option (b) is incorrect.