4.5 moles each of hydrogen and iodine heated in a sealed ten litre vessel. At equilibrium, 3 moles of HI were found. The equilibrium, 3 moles of HI were found. The equilibrium constant for `H_(2)(g)+I_(2)(g)hArr 2HI(g)` is

Options

A. `1`
B. `10`
C. `5`
D. `0.33`

Answer

A

Explanation

`H_(2)(g)+l_(2)(g)hArr2HI(g)`
`{:(t=0,4.5,4.5,0),(t=teq.,4.5-x,4.5-x,2x),(put,x=1.5,,),(,4.5-1.5,4.5-1.5,2xx1.5=3),(,darr,darr,darr),(,3,3,3):}`
`K_(c)=((3)^(2))/(3xx3)=1`