A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g mol-1) was combusted in a bomb calorimeter with a heat capacity of 14.25 kJ °C-1. If the initial temperature was 32.9 °C, use the information below to determine the value of the final temperature of the calorimeter. 4C6H5NH2(l) + 35O2(g) → 24CO2(g) + 14H2O(g) + 4NO2(g)
ΔrU° = -1.28 × 104 kJ mol-1
A) 257 °C
B) 46.6 °C
C) 96.1 °C
D) 41.9 °C
E) 931 °C
Correct Answer:
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