Answer to Question #226939 in Chemical Engineering for Lokika

Question

For crushing of the solids, the Rittengers's law states that the work required for crushing is proportional to

(a) The new surface created

(b) The change in volume due to crushing

(C)A fluid energy mill used for

(d) The size reduction ratio

(e) None of the above

Answer 1

The correct option is a) - the work required for crushing is proportional to the new surface created:

$E=K_R(s_n-s_i)$ , where E is the energy per mass, K_R is the Rittinger's constant, s_n and s_i are new and initial surface areas, respectively.

Answer: a)