# If 22.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature, what is the new volume?

Dec 6, 2016

The new volume $= 23.2 L$

#### Explanation:

We use Boyle's Law

${P}_{1} {V}_{1} = {P}_{2} {V}_{2}$

${P}_{1} = 748 m m H g$

${V}_{1} = 22.5 L$

${P}_{2} = 725 m m H g$

${V}_{2} = \frac{{P}_{1} {V}_{1}}{P} _ 2$

$= \frac{748 \cdot 22.5}{725} = 23.2 L$