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When a system is taken from state 'a' to...

When a system is taken from state 'a' to state 'b' along the path 'acb', it is found that a quantity of heat Q = 200 J is absorbed by the system and a work W = 80 J is done by it. Along the path 'adb', Q = 144 J

In above question, if `U_(a)=40J`, value of `U_(b)` will be

A

`-50J`

B

100 J

C

`-120J`

D

160 J

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The correct Answer is:
D
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