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18 Nov 2019
A bomb calorimeter or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.4723 g sample of benzoic acid (C_7H_6O_2) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.007 times 10^3 g of water. During the combustion the temperature increases from 24.34 to 26.85 degree C. The heat capacity of water is 4.184 J g^lo C^-1. The heat capacity of the calorimeter was determined in a previous experiment to be 943.1 J/degree C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of benzoic acid based on these data. C_7H_6O_2(s) + (15/2) O_2(g) rightarrow 3 H_2O(I) + 7 CO_2(g) + Energy Molar Heat of Combustion = ____ kJ/mol
A bomb calorimeter or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.4723 g sample of benzoic acid (C_7H_6O_2) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.007 times 10^3 g of water. During the combustion the temperature increases from 24.34 to 26.85 degree C. The heat capacity of water is 4.184 J g^lo C^-1. The heat capacity of the calorimeter was determined in a previous experiment to be 943.1 J/degree C. Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of benzoic acid based on these data. C_7H_6O_2(s) + (15/2) O_2(g) rightarrow 3 H_2O(I) + 7 CO_2(g) + Energy Molar Heat of Combustion = ____ kJ/mol
Collen VonLv2
13 Jun 2019