A0.327-g sample of azulene (c10h8) is burned in a bomb calorimeter and the temperature increases from 25.20 °c to 27.60 °c. the calorimeter contains 1.17×103 g of water and the bomb has a heat capacity of 786 j/°c. based on this experiment, calculate δe for the combustion reaction per mole of azulene burned (kj/mol). c13h24o4(s) + 17 o2(g) 13 co2(g) + 12 h2o(l) e = kj/mol.

Explanation:

The given data is as follows.

Molecular weight of azulene = 128 g/mol

Hence, calculate the number of moles as follows.

      No. of moles =

                            =

                            = 0.0030625 mol of azulene

Also,    

Now, putting the given values as follows.    

                   = 11748.67  J

So,  

                    = 1886.4 J

Therefore, heat of reaction will be calculated as follows.

        = (11748.67 + 1886.4) J

                      = 13635.07 J

As,  

          13635.07 J =

                dE =

                     = 4452267.75 J/mol

or,                 = 4452.26 kJ/mol       (as 1 kJ = 1000 J)

Thus, we can conclude that for the given combustion reaction per mole of azulene burned is 4452.26 kJ/mol.