A system is changed from state A to state B by one path and from B to A another path. If \[{{E}_{1}}\] and \[{{E}_{2}}\] are the corresponding changes in internal energy, then [Pb. PMT 2001]

A system is changed from state A to state B by one path and from B to

1.	A system is changed from state A to state B by one path and from B to A another path. If \[{{E}_{1}}\] and \[{{E}_{2}}\] are the corresponding changes in internal energy, then [Pb. PMT 2001]
A.	\[{{E}_{1}}+{{E}_{2}}=-ve\]
B.	\[{{E}_{1}}+{{E}_{2}}=+ve\]
C.	\[{{E}_{1}}+{{E}_{2}}=0\]
D.	None of these
Answer» E.

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A system is changed from state A to state B by one path and from B to A another path. If \[{{E}_{1}}\] and \[{{E}_{2}}\] are the corresponding changes in internal energy, then [Pb. PMT 2001]

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