In a study of equilibrium: `H_(2)(g) + I_(2)(g)

Answer

4

Explanation

`{:(H_(2),+,I_(2), `rArr K =x^(2)/((1-x/2)(3-x/2))`………(1)
`(1-x/2) + 2-x/2 (3-x/2) -x/2, x+x`
`rArr 4-x, 3-x, 2x rArr K=(4x^(2))/(3-x)^(2)`
`therefore` From (1) and (2) x=1.5
`therefore` From (2) `K=(4(1.5)(1.5))/(3-1.5)^(2) rArr K=4`