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underset(P(1), V(1), T(1))("State") A ov...

`underset(P_(1), V_(1), T_(1))("State") A overset("Rev")rarr underset(P_(2), V_(2), T_(2))("State B")`: If `P_(1) = P_(2)` then

A

`underset("universe")(Delta S)= 0`

B

`underset("universe")(Delta S)=1`

C

`underset("universe")(Delta S) gt 0`

D

`underset("universe")(Delta S) lt 0`

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