1 mole of H2 and 1 mole of I2 are taken in a closed vessel till equilibrium is attained. If the equilibrium mixture contains 0.4 mole of HI, then for the formation of HI, the value of Kc is
1
0.8
0.75
0.25
I am gettin an answer which us not in the option as 0.16 can u pls show me the calculation