Sunflower seeds were ground from an initial average particle diameter of 500 m to powder with an average particle diameter of 100 m. The net energy consumption was 0.5 kWh per ton. Estimate the net energy consumption for grinding the sunflower seeds to 50 m powder:

a) according to Rittingers law.

(1.5 marks)

b) according to Kicks law.

(1.5 marks)