16. A pure aluminum sphere with a diameter of 130 mm is to be cast in an open mold casting operation. The melting temper

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16. A pure aluminum sphere with a diameter of 130 mm is to be
cast in an open mold casting operation. The melting temperature of
aluminum is 660 oC and while the pouring temperature is 800 oC.
Compute the amount of heat that must be added to the metal to heat
it to the pouring temperature, starting from a room temperature of
25°C. The heat of the fusion of aluminum is 389,3 J/g while the
density and specific heat is 2,70 g/cm3 and 0,21 Cal/g.oC,
respectively. (Note 1 cal = 4,168 J). Assume no heat losses and
that the specific heat for the solid and molten aluminum has the
same value.