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For the reaction A to B , Delta E = 85 k...

For the reaction `A to B , Delta E = 85 kJ mol^(-1)` , if the system proceeds from A to B by a reversible path and returns to A by an irreversible path , the net change in internal energy (in KJ) is

A

170

B

zero

C

42.5

D

85

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B
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