Question

How does pressure affect gas density?

Answer 1

Well....`PV=nRT`

Explanation:

And so `P/(RT)=n/V=("mass"/"molar mass")/(V)`

And so...`rho=P/(RT)xx"molar mass"`

Thus `rho_"[density](https://socratic.org/chemistry/measurement-in-chemistry/density)"` is directly proportional to pressure..