Recall: In a bomb calorimeter, the heat of a reaction is given by:
where qcal = heat absorbed by the calorimeter and qsol'n = heat absorbed by water in the calorimeter. The respective equations for the two are as follows:
where Ccal = heat capacity of the calorimeter (in J/˚C), m = mass of solution (in g), c = specific heat of solution (in J/g•˚C), and ∆T = change in temperature (final T – initial T, in ˚C).
When a 0.740 g sample of trinitrotoluene (TNT), C 7H5N2O6, 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?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Calorimetry concept. You can view video lessons to learn Calorimetry. Or if you need more Calorimetry practice, you can also practice Calorimetry practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Cruz's class at USF.
What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.