The molar heat of fusion of lithium metal is 3.00 kJ/mol, whereas its heat of vaporization is 147 kJ/mol.  a. What quantity of heat would be needed to melt 1.00 g lithium at its normal melting point? b. What quantity of heat would be needed to vaporize 1.00 g lithium at its normal boiling point? c. What quantity of heat would be evolved if 1.00 g lithium vapor condensed at its normal boiling point?

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