Question

Consider a sealed 1 litre container which holds room air at standard atmospheric pressure. If the container is compressed to a volume of 0.5 litres, what would be the partial pressure of Oxygen (PO2)? Group of answer choices 10.5% 21% 42% 80mmHg 160mmHg 320mmHg 380mmHg 1510mmHg

Answer 1

320 mm Hg.

At normal atmospheric pressure the volume of oxygen is 21% and partial pressure is around at 160 mm Hg.

The relationship between pressure and volume through Boyle's Law states that pressure and volume are inversely propotional, what it means is that if volume is decreased than pressure increaeses and if volume increases pressure decreases.

In this case volume is decreased by half (from 1 liter to 0.5 litre) so than pressure will become two times, which is than equal to 320 mmHg