1.

calculate the DeltaH in kJ for the following reaction, C(g)+O_(2)(g) to CO_(2)(g) given that , H_(2)O(g)+C(g) to CO(g)+H_(2),DeltaH= +131kJ CO(g)+ 1/2O_(2)to CO_(2)(g),DeltaH =-282kJ H_(2)(g)+1/2O_(2)(g) to H_(2)O(g),DeltaH=-242 kJ

Answer»

`-393`
`+393`
`+655`
`-655`

Solution :on ADDING Eq. (i) , (ii) and (iii) we GET
`C(G) + O_(2)(g) to CO_(2)(g), DeltaH=?`
`C(g)+ O_(2)(g) to CO_(2)(g)`
` DeltaH= (131 - 282-242)KJ=-393 KJ`


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