A box has a volume of 0.28m3 and is 70%filled with iron fillings at 25°c. Calculate the:
I. total mass of the iron fillings
II. Energy required to melt 10% of the iron fillings
(Density of iron fillings =8000kgm-3, specific latent heat of fusion of iron = 138000jkg-1, specific heat capacity of iron =460jkg-1k-1 , melting point of iron =1500°c)
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