A1.800-g sample of solid phenol (c6h5oh(s)) was burned in a bomb calorimeter, which has a total heat capacity of 11.66 kj/∘c. the temperature of the calorimeter plus its contents increased from 21.36∘c to 26.37∘c.
(a)-write a balanced chemical equation for the reaction that takes place in the bomb calorimeter. express you answer as a chemical equation including phases. water vapor, h2o(g), will initially form as part of this reaction. however, the temperature of all substances will eventually equilibrate in the bomb calorimeter (to 26.37∘c), which signifies that water and carbon dioxide, h2o(l) and co2(g), are the eventual products of a combustion reaction in a bomb calorimeter.
(b)- what is the heat of combustion per gram of phenol?

Explanation:

(a)   When combustion of phenol takes place then it yields carbon dioxide and water.

A balanced chemical equation for this reaction is as follows.

(b)   Heat released by combustion is equal to the total heat absorbed by the system (total content of calorimeter).

Therefore, heat released will be calculated as follows.

        Heat released =

                                 =

                                 = 58.4166 kJ

Hence, heat of combustion per gram phenol is as follows.

                    =

                    =

                    = -32.45 kJ/g

Therefore, heat of combustion per gram of phenol is -32.45 kJ/g.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.