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For the Reaction 2HI(g) H2(g)+ I2(g),Kc = 0

Question 55

Multiple Choice

For the reaction 2HI(g) For the reaction 2HI(g) H<sub>2</sub>(g) + I<sub>2</sub>(g) ,K<sub>c</sub> = 0.290 at 400 K.If the initial concentrations of HI,H<sub>2</sub>,and I<sub>2</sub> are all 1.50 × 10<sup>-3</sup> M at 400 K,which one of the following statements is correct? A) The concentrations of HI and I<sub>2</sub> will increase as the system is approaching equilibrium. B) The concentrations of H<sub>2</sub> and I<sub>2</sub> will increase as the system is approaching equilibrium. C) The system is at equilibrium. D) The concentrations of H<sub>2</sub> and HI will decrease as the system is approaching equilibrium. E) The concentration of HI will increase as the system is approaching equilibrium. H2(g) + I2(g) ,Kc = 0.290 at 400 K.If the initial concentrations of HI,H2,and I2 are all 1.50 × 10-3 M at 400 K,which one of the following statements is correct?


A) The concentrations of HI and I2 will increase as the system is approaching equilibrium.
B) The concentrations of H2 and I2 will increase as the system is approaching equilibrium.
C) The system is at equilibrium.
D) The concentrations of H2 and HI will decrease as the system is approaching equilibrium.
E) The concentration of HI will increase as the system is approaching equilibrium.

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