Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively)?

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Academy of PakistanTest & Learning

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353Chemical EngineeringMedium

ANone of these

BP/m = K. ln D̅ sa/D̅ sb

CP/m = K. (1/ D̅ sb – 1/D̅ sa)

DP/m = K/ √Dp

Correct answer

C. P/m = K. (1/ D̅ sb – 1/D̅ sa)

Explanation

The correct answer is P/m = K. (1/ D̅ sb – 1/D̅ sa).

Which of the following equations is Rittinger’s crushing law? (Where P = power required by the machine, m = feed rate, k = a constant, D̅ sa & D̅ sb = volume surface mean diameter of feed & product respectively)? - Answer and Explanation | Academy of Pakistan