Which of the following expressions is not correctly represented?

Which of the following expressions is not correctly represented?

A
$d U = d q + d w$
B
$Δ U = Δ q + Δ w$
C
$Δ H = q_{p}$
D
$Δ S = q_{rev} / T$

Solution:

Since q and w are not state functions, the finite changes in these are not represented as $Δq,$ and $Δ w,$ respectively, but simply as q and w.

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