Which among the following relations is/are valid only for reversible process undergone by a pure substance?

Which among the following relations is/are valid only for reversible p

1.	Which among the following relations is/are valid only for reversible process undergone by a pure substance?
A.	Q = dU + W
B.	TdS = du + W
C.	TdS = dU + PdV
D.	Q = PdV + dU
Answer» E.

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Which among the following relations is/are valid only for reversible process undergone by a pure substance?

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