Chp3_AtomRxns

Chp3_AtomRxns - Atomization Reactions Note that atomization...

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Unformatted text preview: Atomization Reactions Note that atomization reactions discussed on page 82 are simply another sort of defined reaction type, not dissimilar to combustion, formation, etc. If you consider a generic compound X a Y b Z c where X, Y, Z are elements and a, b, c are the subscript values in the formula, then the atomization reaction is defined: ( 29 ( 29 ( 29 ( 29 g cZ g bY g aX g Z Y X c b a + + where all the components are in the gas phase . As for any reaction, H rxn can be expressed in terms of H f if those data are available. Please note that atoms such H, F, etc., namely the single atoms of elements whose standard state form are diatomic molecules, have H f values that are not zero. So, for example, consider the atomization of acetylene ( C 2 H 2 ) HCCH: ) ( 2 ) ( 2 ) ( 2 2 g H g C g H C + where we note that we really mean two H-atoms, not a single molecule of diatomic molecular hydrogen, H 2 ....
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Chp3_AtomRxns - Atomization Reactions Note that atomization...

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