For a system which undergoes an infinitesimal reversible process between two equilibrium states, the change in internal energy is

dU = -TdS ‚Äö√Ñ√∂‚àö√ë‚àö¬® pdV

dU = pdV ‚Äö√Ñ√∂‚àö√ë‚àö¬® TdS

dU = TdS ‚Äö√Ñ√∂‚àö√ë‚àö¬® pdV

For a system which undergoes an infinitesimal reversible process betwe

1.	For a system which undergoes an infinitesimal reversible process between two equilibrium states, the change in internal energy is
A.	dU = pdV ‚Äö√Ñ√∂‚àö√ë‚àö¬® TdS
B.	dU = TdS + pdV
C.	dU = TdS ‚Äö√Ñ√∂‚àö√ë‚àö¬® pdV
D.	dU = -TdS ‚Äö√Ñ√∂‚àö√ë‚àö¬® pdV
Answer» D. dU = -TdS ‚Äö√Ñ√∂‚àö√ë‚àö¬® pdV