Answer to Question #88125 in General Chemistry for gianna

Question

The equilibrium constant Kc for the reaction below is 3.75 at 300 K.
What is the value of Kc for the equilibrium below at 300 K?
1/2 A 2 + 1/2 B 2 -------> AB

Answer 1

Solution.

To find Ks for equilibrium below at 300 K, it is necessary to use the following formula:

$$Kc' = Kc/(RT)^f$$

f - the difference between the number of moles of gaseous reaction products and the number of moles of the starting materials.

Kc' = 3.75/(8.31*300)^0 = 3.75

Answer:

Kc' = 3.75/(8.31*300)^0 = 3.75