Bomb Calorimetry Lab Report

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Bomb Calorimetry is a valuable instrumentthat measures the energy content of food and chemicals. A substance inside of the Bomb Calorimetry goes through a combustion reactions which take place inside of a closed stainless-steel container surrounded by water. In this experiment, benzoic acid and Tollhouse chocolate chips will release energy through a combustion reaction inside of the stainless-steel container. The combustion reaction that occurs will cause the water surrounding the system to increase. To determine the combustion reaction’s energy change from the change in temperature, the heat capacity of benzoic acid must be calculated. This requires the benzoic acid to be burned in the Bomb Calorimetry. Afterwards, Tollhouse chocolate chips will then be utilized by the bomb calorimetry to calculate the energy content of a serving of chocolate chips. The heat of the system and the change in the internal energy for the system will be discovered. The value will then be compared to the nutritional value on the package of the Tollhouse chocolate chips. …show more content…
The equation for heat capacity is C = (qb.a. • mb.a.)/T. qb.a. is the heat of combustion of benzoic acid at 26435 J/g while mb.a. is the mass of the benzoic acid. To find the heat capacity, the rise in temperature with the combustion of the benzoic acid must be identified. If the system is insulated, the entire system would be considered adiabatic and the temperature of the surrounding water would only increase. Since the procedure is adiabatic, qtotal = qsystem + qsurroundings = 0. qsystem is the heat that is released caused by the reaction while qsurroundings is rise of the water’s temperature. Measuring the temperature rise by burning the benzoic acid can be utilized to find the heat capacity from its previous

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