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The transformation of A to B can be carr...

The transformation of A to B can be carried out by the following two ways in which the initial and final states are identical. (1) `A=overset(DeltaH=-xkJ)toB`,
(2) `Aoverset(DeltaH=-ykJ)toCoverset(DeltaH=?)toB`, What will be the value of `DeltaH` during the transformation of C to B?

Text Solution

Verified by Experts

According to Hess's law, the change in enthalpy in process (1)=total change in enthalpy in process (2)
`therefore -xkJ=-ykJ+DeltaH" "therefore DeltaH=(y-x)kJ`.
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