When a 0.740-g sample of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the temperature increases from 23.4 °C to 26.9 °C. The heat capacity of the calorimeter is 534 J/°C, and it contains 675 mL of water. How much heat was produced by the combustion of the TNT sample?

Question

Chemistry

Darrell Washington

15 October, 16:16

When a 0.740-g sample of trinitrotoluene (TNT), C7H5N2O6, is burned in a bomb calorimeter, the temperature increases from 23.4 °C to 26.9 °C. The heat capacity of the calorimeter is 534 J/°C, and it contains 675 mL of water. How much heat was produced by the combustion of the TNT sample?

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Answers (1)

Know the Answer?

Sandra Daniel · Answer 1

The answer to your question is: Q = 1383.06 J

Explanation:

Data

mass = 0.740 g

Initial Temperature = 23.4°

Final Temperature = 26.9°

Cp = 534 J/°C

mass of water = 675 ml

Q = ?

Formula

Q = mCpΔT

Process

Q = (0.740) (534) (26.9 - 23.4)

Q = (0.740) (534) (3.5)

Q = 1383.06 J