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What is Delta(r)H for CH(4(g))+20(2(g))t...

What is `Delta_(r)H` for `CH_(4(g))+20_(2(g))to CO_(2(g))+2H_(2)O(l)` in terms of molar enthaples of the respective reaction and products?

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`triangle_(r)H=` Sum of enthalpies of products -sum of enthalpies of reactants
`=triangleH_(p)-triangleH_(r)`
`triangle_(r)H=H(CO_(2))+2 xx H(H_(2)O)-H(CH_(4))+2 xx H(O_(2))`
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