After an airbag deploys in a car, free sodium metal is present. This reacts with Fe203 to produce Na20 in the following reaction Na + Fe203 - Na2O + Fe The energy required to break the bonds in the reactants is 824 kJ/mol and the energy released when products form is
416 kJ/mol. Is this reaction endothermic or exothermic and what is the AHrxn?
Endothermic
AHrxn = 424 kJ
O Exothermic
AHrxn = -424 kJ
O Endothermic
AHrxn = 2070 kJ
O Exothermic
AHrxn = -2070 kJ