Topscore question

[vondy60]

Could someone give me an explaination for this topscore problem please?

When 14.25 moles of PCl5 gas is placed in a 3.00 L container and comes to equillibrium at constant temperature, 40% of PCl5 decomposes according to this equation:

PCl5 (g)-------->PCl3 (g) +Cl2 (g)

What is the value of Kc of this reaction?

The answer is (1.896) squared/(2.854)

 

[momowheels]

This question seems to have been answered a thousand times.
Here is a link where a guy named jo answers it.
http://forums.studentdoctor.net/showthread.php?s=&threadid=86438

 

[Jo23]

By the way....I'm not a guy 🙂