Posted by **billy** on Tuesday, February 23, 2010 at 2:17pm.

the heat of fusion for thallium is 21 J/g, and its heat of vaporization is 795 J/g. Thallium's melting point is 304 degrees celsius, and its boiling point is 1457 degrees celsius. The specific heat of liquid thallium is 0.13 J/g degrees celsius. How much heat is needed to change 236 g of solid thallium at 304 degrees celsius to vapor at 1457 degrees celsius and 1 atm?

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