Question

15 moles of $H_2$ and 5.2 moles of $I_2$ are mixed and allowed to attain equilibrium at 500${}^o$C. At equilibrium, the concentration of $HI$ is found to be 10 moles. The equilibrium constant for the formation of $HI$ is:

• A. 50
• B. 15
• C. 100
• D. 25

Answer 1

The correct option is A 50

The equilibrium constant of the above case will be 100/2 = 50

So option A is the correct answer.