Question

an alternative approach to bomb calorimeters is to establish the heat capacity of the calorimeter,, exclusive...

an alternative approach to bomb calorimeters is to establish the heat capacity of the calorimeter,, exclusive (without the presence of) the water it contains. the heat absorbed by the water and by the rest of the calorimeter must be calculated separately and then added together. a bomb calorimeter assembly containing 983.5g of water is calibrated by the combustion of 1.354g anthracene (C14H10(s)) . the temperature rises from 24.87 to 35.63 degrees C in this reaction. once calibrated, when 1.053g of citric acid (C6H8O7) is burned in the same assembly, but with 968.6g of water, the temperature increases from 25.01 to 27.19degrees C. what is the heat of combustion of citric acid in kJ/mol? (the heat of combustion of anthracene is -7076 kJ/mol and C(h2o) is 4.184 J/g K)

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