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An imaginary reaction X rarr Y takes pla...

An imaginary reaction `X rarr Y` takes place in three steps
`X rarr A, DeltaH=-q_(1), " "BrarrA, DeltaH=-q_(2), " "BrarrY, DeltaH=-q_(3)`
If Hess's law is applicable, then the heat of the reaction `(X rarr Y)` is :

A

`q_(1)-q_(2)+q_(3)`

B

`q_(2)-q_(3)-q_(1)`

C

`q_(1)-q_(2)-q_(3)`

D

`q_(3)-q_(2)-q_(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`XtoA+q_(1)`
`q_(2)+AtoB`
`BtoY+q_(3)`
`q_(2)+XtoY+q_(1)+q_(3),DeltaH=q_(2)-q_(1)-q_(3)`
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