## Essential University Physics: Volume 1 (3rd Edition)

We know that the SI unit for pressure is Pa. Thus, we convert: $1 \ torr \times \frac{1\ atm}{760 \ torr} \times \frac{101.3 \times 10^3 \ Pa}{atm} = 133\ Pa$ We do the same for mmHg. Since there are 25.4 mmHg per torr, it follows: $133.29 \times 25.4 = 3,385 \ Pa$