In the diagram below,nitrogen molecules are represented by unshaded spheres,oxygen molecules by gray spheres,and chlorine molecules by black spheres.
-If the total pressure in the container is 900 mm Hg,what is the partial pressure of nitrogen?
A)90 mm Hg
B)180 mm Hg
C)270 mm Hg
D)450 mm Hg

Question

In the diagram below,nitrogen molecules are represented by unshaded spheres,oxygen molecules by gray spheres,and chlorine molecules by black spheres. 
-If the total pressure in the container is 900 mm Hg,what is the partial pressure of nitrogen?
A)90 mm Hg 
B)180 mm Hg 
C)270 mm Hg 
D)450 mm Hg

Quizplus · Accepted Answer

From the diagram, it can be seen that nitrogen molecules occupy half of the total volume, and therefore exert half of the total pressure. So, the partial pressure of nitrogen would be 900 mm Hg divided by 2, which equals 450 mm Hg. Therefore, option D is incorrect. Option A and C are also incorrect as they do not take into account the proportion of nitrogen in the container. Therefore, the correct answer is B.

In the Diagram Below,nitrogen Molecules Are Represented by Unshaded Spheres,oxygen