A weather balloon occupies 58 m3 at ground level where the pressure is 103 kPa. It rises to a region where the pressure is only 82 kPa. Calculate the new volume.
| Data statements | V1 = 58 m3 p1=103 x 103 Pa p2=82 x 103 Pa |
|
| Formula | p1V1 = p2V2 | |
| Transposition | V2 = p1V1 / p2 | |
| Substitution | V2 = 103 x 103 Pa x 58 m3 / 82 x 103 Pa | |
| Evaluation | V2 = 73 m3 | 72.85... has to be reduced to 2 SF, controlled by the pink and blue data. |