A 3.619 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 24.95°C to 30.74°C. The heat capacity (calorimeter constant) of the calorimeter is 44.69 kJ/°C, what is the heat of combustion per gram of the material?

Question
Asked Oct 21, 2019

A 3.619 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of the calorimeter and its contents increase from 24.95°C to 30.74°C. The heat capacity (calorimeter constant) of the calorimeter is 44.69 kJ/°C, what is the heat of combustion per gram of the material?

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Expert Answer

Step 1

In a calorimeter, heat absorbed by calorimeter and the heat released by the s...

AT (30.74°C)-(24.95°C) 5.79°C
cal = caAT
(44.69 kJ/°C) (5.79°C) 258.76 kJ
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AT (30.74°C)-(24.95°C) 5.79°C cal = caAT (44.69 kJ/°C) (5.79°C) 258.76 kJ

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