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In the reaction, CO(g)+1/2O2(g)→CO2 at...

In the reaction, `CO(g)+1/2O_2(g)→CO_2 ` at constant T and P which one of the following is correct ?
(i) `/_\H=/_\E`
(ii) `/_\H>/_\E`
(iii) `/_\H< /_\E`

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