Question

Given the reaction H2(g) + I2(g) <----> 2HI (g), what are the concentrations of H2 and I2?
Given the reaction H2(g) + I2(g) <----> 2HI (g), what are the concentrations of H2 and I2, at equilibrium, if 1 mole of H2 and 1 mole of I2 are reacted at a temperature of 450° C? The Keq = 65.2

A. 0 mol/L
B. 0.40 mol/L
C. 1.80 mol/L
D. 2.00 mol/L