For the reaction: H2(g) + I2(g) 2HI(g) , Kc = 12.3 at some temperature T. If [H2] = [I2] = [HI] = 3.21 x 10-3 M at this temperature, which one of the following statements is true?

Question

1. ) Not enough information is given to answer the question.
2. ) The concentration of HI will rise as the system approaches equilibrium.
3. ) The concentrations of H2 and I2 will increase as the system approaches equilibrium.
4. ) The concentrations of H2 and HI will decrease as the system approaches equilibrium.
5. ) The system is at equilibrium, no change.

Answer 1

so what do you think will happen?