An 821 G Sample of Glycerol (C₃H₈O₃, Molar Mass = 92

An 8.21 g sample of glycerol (C₃H₈O₃, molar mass = 92.0938 g mol^-1) was combusted in a bomb calorimeter with a heat capacity of 10.61 kJ °C^-1. If the temperature increased from 22.1 °C to 36.0 °C, determine Δ_rU for the combustion of glycerol.

A) -4.38 × 10³ kJ mol^-1
B) 3.65 × 10³ kJ mol^-1
C) 2.18 × 10³ kJ mol^-1
D) -2.18 × 10³ kJ mol^-1
E) -1.65 × 10³ kJ mol^-1