How much heat is evolved when 25.5 g of benzene freezes at 5.5 Celcius (molar heat of fusion is 9.94 kJ/mol and molar mass of benzene= 78.0 g/mol)
Chem 2 enthalpy - DrBob222, Thursday, August 26, 2010 at 4:59pm
q = mass x delta Hfusion.
Change 25.5 g to moles. moles = grams/molar mass.
Note the correct spelling of celsius.