How much heat energy, as kJ, is released when 10.0 g of benzene gas at 95.0 degrees Celsius are condensed to the liquid at the normal boiling point

How much heat energy, as kJ, is released when 10.0 g of benzene gas at 95.0 degrees Celsius are condensed to the liquid at the normal boiling point and then cooled to 25 degrees Celsius? (benzene MM = 78.114g/mol) (Hint: sketch the heating curve) [I am not sure where to even start with this problem, I don't want the answer I just want to learn how to do problems such as this. Please help]