The molecular scene below represents a phase change of bromine Br2. Use the following data to
find the heat released or absorbed in KJ when 47.94 grams of Bromine undergoes this change.
Cm(liquid)=75.7 J/mole °C; Cm(gas) = 36.0 J/mole °C; AHfusion= 10.6 kJ/mole; AHvap=29.6 kJ/mole;
m.p.-7.25 °C; b.p=59.5 °C.