1.

Given the enthalpy changes: A+BtoC DeltaH=-35KJxxmol^(-1) A+DtoE+FDeltaH=+20KJxxmol^(-1)Fto C+EDeltaH=+15KJxxmol^(-1) What is DeltaHfor the reaction 2A+B+Dto2F ?

Answer»

`0KJ.mol^(-1)`
`-30KJ.mol^(-1)`
`-40KJ.mol^(-1)`
`-70KJxxmol^(-1)`

ANSWER :B


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