In the diagrams (i) to (iv) of variation of volume with changing pressure is shown. A gas is taken along the path ABCD . The change in internal energy of the gas will be

In the diagrams (i) to (iv) of variation of volume with changing press

1.	In the diagrams (i) to (iv) of variation of volume with changing pressure is shown. A gas is taken along the path ABCD . The change in internal energy of the gas will be
Answer» Positive in all cases (i) to (iv) Positive in cases (i), (II) and (iii) but ZERO in (iv) CASE Negative in cases (i), (ii) and (iii) but zero in (iv) case Zero in all FOUR cases Answer :D