Which of the following is an inexact differential? (A) \( d q \) (B) \( d q \times \frac{1}{T} \...

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Which of the following is an inexact differential?
(A) \( d q \)
(B) \( d q \times \frac{1}{T} \)
(C) \( C_{p} \)
(D) \( H \)
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