A4.98 g sample of aniline (c6h5nh2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kj/°c. if the temperature rose from 29.5°c to 69.8°c, determine the value of δh°comb for aniline. a) +7.81 × 103 kj/mol b) -3.20 × 103 kj/mol c) +1.71 × 103 kj/mol d) -1.71 × 103 kj/mol e) -7.81 × 103 kj/mol