An engineer is testing the pressure-volume relationship of a nitrogen gas buffer inside a cryogenic storage system. The system maintains the nitrogen at a constant temperature of 77 K.
The engineer's experimental measurements are recorded in Table 1.
| Pressure, PPP (atm\text{atm}atm) | Volume, VVV (L\text{L}L) | P×VP \times VP×V (L⋅atm\text{L}\cdot\text{atm}L⋅atm) |
|---|---|---|
| 1.5 | 8.05 | 12.08 |
| 2.0 | 5.92 | 11.84 |
| 2.5 | 4.84 | 12.10 |
| 3.5 | 3.41 | 11.94 |
| 4.0 | 3.02 | 12.08 |
Use the data in Table 1 to estimate the volume of the gas buffer when the pressure is 3.0 atm3.0\text{ atm}3.0 atm.