Greater Heat Of Reaction 1

[LUFER]

Hello, I'm in doubt regarding an article that refers to potassium and sodium preclorate. I know they are two oxidants used mainly to make nano-explosives using porous silicon. There is an excerpt from an article that I did not quite understand what he meant by reference. .... '' 'greater heat of reaction' '' ... it does not refer to raising the temperature to do the chemical functions so that it penetrates into the porous silicon would that be?

Source: NANOPOROUS SILICON BASED ENERGETIC MATERIALS
Pages 3 and 6.

 

[TiCl4]

"Heat of Reaction" is formally defined as the sum of the heats of formation of the products minus the sum of the heats of formation of the reactants.

In layman's terms, it is how much energy is released or absorbed when a reaction occurs. In this case, the reaction is exothermic. The "greater heat of reaction" comment simply means that one material releases more energy than another material per unit mol or unit mass.

Please be aware of the units for heat of reaction that he is referencing; Hrxn is often expressed in either energy/mol or energy/mass.