Discussion
Consider the following statements about size reduction laws:
1. Kick's law suits coarse crushing.
2. Rittinger's law suits fine grinding.
3. Bond's law predicts energy proportional to the new surface created.
Which of the statements given above is or are correct?
Answer: A
Correct answer: 1 and 2 only
Statements 1 and 2 correctly assign each law to the range it suits: Kick, which depends only on the size ratio, for coarse crushing, and Rittinger, which follows the new surface, for fine grinding. Statement 3 misattributes Rittinger’s premise to Bond - Bond’s law involves the square root of particle size and sits between the other two.
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