"He who lays up treasures on earth spends his life backing away from his treasures. To him, death is loss. He who lays up treasures in heaven looks forward to eternity; he’s moving daily toward his treasures. To him, death is gain." - Randy Alcorn
The atomic mass of carbon is 12.011 (i think) and the weight of carbon is 12. But with C13 and C14 being a little higher, it makes the average higher. Random fact: C14 is used for carbon dating.
The initial state of the compound Br2 is liquid. The final
state is then solid. We know for certain that the liquid state has higher energy
as compared to solid state. Due to this fact, Br2 must release energy to be in
solid form. Therefore, the change in enthalpy is: