When 1. 550 g of liquid hexane (c6h14) undergoes combustion in a bomb calorimeter, the temperature rises from 25. 87 ∘c to 38. 13 ∘c. Find δerxn for the reaction in kj/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5. 73 kj/∘c.

The correct answer is b, social stratification is needed for a society to exist. marxist theory regarding social stratification is that due to the differing economic capacities among people in society, a natural separation occurs between those that own the means of production and those that sell their labour in the production chain.