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The direct conversion of A to B is diffi...

The direct conversion of `A` to `B` is difficult, hence it is carried out as
`A rarr C rarrD rarr B`
Given, `DeltaS_((A^rarrC)) = 50 eU,DeltaS_((C^rarrD))=30eU,DeltaS_((BrarrD))=20 eU`, where `eU` is entropy unit. Thus the change in entropy in `(A rarrB)` is:

A

`100 eU`

B

`60 eU`

C

`-100 eU`

D

`-60 eU`

Text Solution

Verified by Experts

The correct Answer is:
b
`DeltaS_(AtoB)=DeltaS_(AtoC)+DeltaS_(CtoD)+DeltaS_(BtoD)`
`50+30-20=60 eU`
`(DeltaS_(BtoD)=20, :. DeltaS_(DtoB)=-20 eU)`
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