Question

At a pressure of 760 $mm$, a gas cylinder contains 15% oxygen and 20% carbon dioxide by volume, their respective partial pressures in $mm$ are:

• A. $150,144$
• B. $114,152$
• C. $160,200$
• D. $200,160$

Answer 1

The correct option is B $114,152$

$P_{o_2}=\frac{760\times 15}{100}=114$ $mm$

$P_{c{o}_2}=\frac{760\times 20}{100}=152$ $mm$