1.

The standed enthalpies of combustion of formaldehyde , H_(2)C=O(g), and formic acid HCOOH(l), are -563 and -270 Kj.mol^(-1) respectively . What Is DeltaH^(@) for the following reaction ? H_(2)C=O(g)+(1)/(2)O_(2)(g)to HCOOH(l)

Answer»

`-833KJ.mol^(-1)`
`-293KJ.mol^(-1)`
`293KJ.mol^(-1)`
`833KJ.mol^(-1)`

ANSWER :B


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