Question

A 500 mL sample of oxygen gas at 760 mmHg is compressed to 100 mL. What is the new pressure?

Answer 1

Approx. `5*atm`.......

Explanation:

Given constant temperature and a constant quantity of gas,

`P_1V_1=P_2V_2`.

And thus `P_2=(P_1V_1)/V_2=(1*atmxx500*mL)/(100*mL)=??atm`.

Note that you would never quote a pressure OVER `1*atm` in `mm` `Hg`.