The pair of isochoric among the transformation of state is:

1. K to L and L to M
2. L to M and N to K
3. L to M and M to N
4. M to N and N to K
| List I | List II | ||
| A. | \(\Delta H = q \) | I. | \(P_{ext} =0 \) |
| B. | Free expansion | II. | Heat |
| C. | Path function | III. | At constant pressure |
| D. | Reversible process | IV. | An infinitely slow process that proceeds through a series of equilibrium states |
| Options: | (A) | (B) | (C) | (D) |
| 1. | I | III | II | IV |
| 2. | I | II | III | IV |
| 3. | III | I | IV | II |
| 4. | III | I | II | IV |