Question

Outside the lining of the alveolus is blood, which is at a gauge pressure of 5 mmHg, while air is contained inside the alveolus. What is the absolute pressure inside the alveolus

Answer 1

765 mmHg

Step-by-step explanation:

The gauge pressure = 5 mmHg

To get the absolute pressure we use the relationship

`P_(ab)= P_(g)+ P_(atm)`

where
`P_(ab)` is the absolute pressure = ?

`P_(g)` is the gauge pressure = 5 mmHg

`P_(atm)` = atmospheric pressure = 760 mmHg

substituting, we have

`P_(ab)` = 5 mmHg + 760 mmHg = 765 mmHg