An 821 G Sample of Glycerol (C₃H₈O₃,molar Mass = 92 $\mathrm { mol } ^ { - 1 }$

An 8.21 g sample of glycerol (C₃H₈O₃,molar mass = 92.0938 g $\mathrm { mol } ^ { - 1 }$ ) was combusted in a bomb calorimeter with a heat capacity of 10.61 kJ ${ } ^ { \circ } \mathrm { C } ^ { - 1 }$ .If the temperature increased from 22.1 °C to 36.0 °C,determine $D _ { \mathrm { r } }$ U 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