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Physics-

General

Easy

Question

A system goes from A to B via two processes I and II as shown in figure. If $increment U subscript 1 end subscript a n d blank increment U subscript 2 end subscript$ are the changes in internal energies in the processes I and II respectively, then

$∆ U_{1} = ∆ U_{2}$
Relation between $∆ U_{1} a n d ∆ U_{2}$ cannot be determined
$∆ U_{2} > ∆ U_{1}$
$∆ U_{2} < ∆ U_{1}$

The correct answer is: $increment U subscript 1 end subscript equals blank increment U subscript 2 end subscript$

The change in internal energy does not depend upon path followed by the process. It only depends on initial and final states.
Hence, $increment U subscript 1 end subscript equals increment U subscript 2 end subscript$

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