Answer to Question #344899 in Inorganic Chemistry for Mark

Question

A 3.00 g sample of TNT (trinitrotoluene, C7H5N3O6) is placed 

in a bomb calorimeter with a heat capacity of 1.93 kJ/°C; the 

ΔHcomb of TNT is −3403.5 kJ/mol. If the initial temperature of 

the calorimeter is 19.8°C, what will be the final temperature of 

the calorimeter after the combustion reaction (assuming no heat 

is lost to the surroundings)

Answer 1

1. T_final = 43.1°C; the combustion reaction is 4C₇H₅N₃O₆(s) + 21O₂(g) → 28CO₂(g) + 10H₂O(g) + 6N₂(g); (TNT) = −65.5 kJ/mol