Stearic acid (C18H36O2) is one of the most common in nature fatty acids, which is a part of glycerides in lipids, especially triglycerides of animal fats. The complete combustion of stearic acid can be represented as: C18H36O2(s)+26O2(g)→18CO2(g)+18H2O(l) In a bomb calorimeter with a heat capacity of 10.66 kJ⋅∘C−1, 0.7081 g of stearic acid (molar mass = 284.48 g⋅mol−1) was combusted. The temperature of the calorimeter was observed to rise by 2.632 ∘C. Determine the ΔrU for the combustion of stearic acid