The balanced combustion reaction for C6H6
is
2C6H6(l)+15O2(g)⟶12CO2(g)+6H2O(l)+6542 kJ


If 8.400 g C6H6
is burned and the heat produced from the burning is added to 5691 g
of water at 21 ∘
C, what is the final temperature of the water?