At a high temperature, equal concentrations of 0.200 mol L-1 of H2(g) and I2(g) are initially present in a flask. The H2 and I2 react according to the following balanced equation:


H2(g) + I2(g) ⇌
2 HI(g)


When equilibrium is reached, the concentration of H2(g) has decreased to 0.046 mol L-1. What is the equilibrium constant, K, for the reaction?



K =
Number