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April 23, 2014

Homework Help: Chemistry

Posted by Charles on Saturday, May 1, 2010 at 6:46pm.

Some properties of aluminum are summarized in the following list.


normal melting point 658C
heat of fusion 0.395 kJ/g
normal boiling point 2467C
heat of vaporization 10.52 kJ/g
specific heat of the solid 0.902 J/gC

(a) Calculate the quantity of energy required to heat 1.75 mol of aluminum from 17C to its normal melting point.

(b) Calculate the quantity of energy required to melt 1.37 mol of aluminum at 658C.

(c) Calculate the amount of energy required to vaporize 1.36 mol of aluminum at 2467C.

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