1.

Following reaction occurring in an automobile .^(2)C_(8)H_(18)(g)+25O_(2)(g)rarr16CO_(2)(g)+18H_(2)O(g). The sign of DeltaH, DeltaS and DeltaG would be

Answer»

`+, -, +`
`-, +, -`
`-, +, +`
`+, +, -`

SOLUTION :For Combustion REACTION, `DeltaH` is negative, `Deltan=(16+18)-(25+2)=+7", so " DeltaS` is +ve, reaction is SPONTANEOUS, HENCE `DeltaG` is -ve.


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