In the diagrams i to iv of variation of volume with changing

Last updated: 6/7/2023

In the diagrams i to iv of variation of volume with changing pressure is shown A gas is taken along the path ABCDA The change in internal energy of the gas will be i iii A VA B C B P ii iv A A B B 1 Positive in all cases i to iv 2 Positive in cases i ii and iii but zero in case iv 3 Negative in cases i ii and iii but zero in case iv