Answer to Question #119149 in General Chemistry for Abigail Rouse

Question

A system at equilibrium is represented by the following chemical equation: H₂(g) + I₂(g) <--> 2HI(g) + 9.40 kJ At equilibrium, this system has a [H₂] = [I₂] = 0.666 M and [HI] = 1.234 M. Calculate the value of K for this system.

Answer 1

K = [HI]²/([H₂]*[I₂]) = 1.234²/(0.666*0.666) = 3.43