# The molar heat of fusion of sodium metal is 2.60 kj/mol, whereas its heat of vaporization is 97 kJ/mol. A) Why is the heat of vaporization so much larger than the heat of fusion? a)Since conversion from a liquid to a gas breaks many more intermolecular forces than conversion from a solid to a liquid, it requirs much more energy. b)Since conversion from a liquid to a gas breaks many more intermolecular forces than conversion from a solid to a liquid, it requirs much less energy. c)Since conversion from a solid to a liquid breaks many more intermolecular forces than conversion from a liquid to a gas, it requires much more energy. d)Since convversion from a solid to a liquid breaks many more intermolecular forces than converssion from a liquid to a gas, it requires much less energy. e) Since conversion from a liquid to a gas breaks many more intermolecular forces than conversion from a solid to a gas, it requires muhc less energy. B) What quantity of heat would be needed to melt 1.00 g sodium at its normal melting point? Heat= --- J 