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As already mentioned by me in the comments, both the approaches are exactly the same. To explain this point, I would like to find the numerical value of the question posted by you in the comments using both methods. By Manipulating the Equations: Given: $$ \begin{align} \begin{array}{ c c} \ce{S + 3/2O2 -> SO3 } & ΔH = \pu{-395 kJ} \\ \ce{2SO2 + ...


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Matter can gain or lose energy in small, specific amounts called quanta. A quantum is the minimum amount of energy that can be gained or lost by an atom. For example, it might seem that you can add any amount of heat to water, but what is actually happening is that the water molecules absorb quanta of energy which increases the water's temperature in ...


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