Question

Hydrogen iodide undergoes decomposition according to the equation

2HI(g) ⇌ H2(g) + I2(g)


The equilibrium constant at 425 oC for this system is 0.018. If 1.0 mol of each of H2, I2, and HI were placed in a 1.0 L container at 425 oC, then


A) the concentration of HI would decrease.
B) the value of K would increase to 1.0.
C) because of reaction, the total number of molecules would decrease.
D) because of reaction, the total number of molecules would increase.
E) the concentration of H2 would decrease.