In the above example , if the system moves from Bto A, what is the Change in internal energy ?

In the above example , if the system moves from Bto A, what is the Cha

1.	In the above example , if the system moves from Bto A, what is the Change in internal energy ?
Answer» 300 J `-300 J` 400 J `-400 J` Solution :Consider a closed path that through the state A and B . Internal ENERGY is a state function , So `DeltaU` is zero for a closed path. Thus, `DeltaU=DeltaU_(AB)+DeltaU_(BA)=0` or`DeltaU_(BA)=-DeltaU_(AB)=-300J`

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In the above example , if the system moves from Bto A, what is the Change in internal energy ?

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