Question

Which of the following law determine energy requirement in size reduction?

(a) Kick’s law, Bond’s law

(b) Rittinger’s law, Bond’s law

(c) Rittinger’s law and Kick’s law

(d) Kick’s law, Bond’s law, Rittinger’s law

This question was addressed to me in an internship interview.

This key question is from Size Reduction in chapter Size Reduction of Food Processing Unit Operations

Answer 1

The correct option is (c) Rittinger’s law and Kick’s law

To elaborate: Determination of energy required in size reduction is generally done using Kick’s law or Rittinger’s law. The Rittinger’s law is stated as the energy required for reduction in particle size of a solid is directly proportional to the increase in surface area. The kick’s law is defined as the amount of energy required to crush a given amount of material to a specified fraction of its original size is the same, regardless of the original size.