What is ΔHcomb (in kJ·mol-1) for each substance if each substance is combusted in a constant volume bomb calorimeter with the water at an initial temperature of 22.02 ºC? The heat capacity of the calorimeter (which includes the water) is 9.87 kJ· ºC-1. Determine the error in this value comparing to the real value using appendix 2. Assume all products are gases and the combustion is complete.
a.) 1.205 g of glucose (C6H12O6) which raises the temperature of water to 23.92 ºC
b.) 1.750 g of sucrose (C12H22O11) which raises the temperature of water to 24.61 ºC
c.) 1.850 g of graphite which raises the temperature of water to 27.95 ºC