Which k values would indicate that there is more b than a at equilibrium?

Asked by maham237 @ in Chemistry viewed by 321 People

For the reversible reaction. A(g) = B(g). which K values would indicate that there is more B then A at equilibrium? a)K=7x10^-9. b)K=4000. c)K=0.2. d)K=1x10^6

Answered by maham237 @


Answer is both (b) and (d).


Explanation;


Equilibrium constant is written as a ratio between concentrations of products and reactants.


The equilibrium reaction is

A(g) ⇄ B(g)


Hence, the equilibrium constant can be expressed as

K = [B(g)] / [A(g)]


If there is more B, then A should be less. Hence, K value would be more than 1.

Hence, according to the given choices, K = 4000 and K = 1 x 10⁶ can be taken as correct answers.



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