Under constant-volume conditions, the heat of combustion of benzoic acid (C6H5COOH) is 26.38 kJ/g. A 2.780 g sample of benzoic acid is burned in a bomb calorimeter. The temperature of the calorimeter increases from 21.40°C to 29.98 °C.
a. What is the total heat capacity of the calorimeter?
b. A 1.450 g sample of a new organic substance is combusted in the same calorimeter. The temperature of the calorimeter increases from 22.14 °C to 27.09 °C. What is the heat of combustion per gram of the new substance?

Question

Under constant-volume conditions, the heat of combustion of benzoic acid (C6H5COOH) is 26.38 kJ/g. A 2.780 g sample of benzoic acid is burned in a bomb calorimeter. The temperature of the calorimeter increases from 21.40°C to 29.98 °C.
a. What is the total heat capacity of the calorimeter?
b. A 1.450 g sample of a new organic substance is combusted in the same calorimeter. The temperature of the calorimeter increases from 22.14 °C to 27.09 °C. What is the heat of combustion per gram of the new substance?

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