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For the reaction 3N(2)O((g))+2NH(3(g))...

For the reaction
`3N_(2)O_((g))+2NH_(3(g)) rarr 4N_(2(g))+3H_(2)O_((g))Delta H^(@) = -879.6 KJ` if standard heat of formation of ammonia and water are -45.9KJ/mol and -241.8KJ/mol. Then standard heat of formation of nitrous oxide in KJ/mol is

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