A 498 G Sample of Aniline (C₆H₅NH₂, Molar Mass = 93

A 4.98 g sample of aniline (C₆H₅NH₂, molar mass = 93.13 g mol^-1) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ °C^-1. If the temperature rose from 29.5 °C to 69.8 °C, determine the value of Δ_rU for the combustion of aniline.

A) +7.81 × 10³ kJ mol^-1
B) -3.20 × 10³ kJ mol^-1
C) +1.71 × 10³ kJ mol^-1
D) -1.71 × 10³ kJ mol^-1
E) -7.81 × 10³ kJ mol^-1