Discussion
Which statement about size reduction laws is FALSE?
Answer: A
Correct answer: Rittinger's law suits coarse crushing best
This is the false statement, and it inverts the usual assignment. Rittinger makes energy proportional to the new surface created, which is the dominant cost in fine grinding, so it suits the fine range. Kick’s law, depending only on the logarithm of the size ratio, suits coarse crushing, and Bond’s law with its square-root dependence sits between them.
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