For an equilibrium `H_(2)O(s)hArrH_(2)O(l),` which of the following statements is ture ?

Options

A. The pressure changes do not affect the equilibrium
B. More of ice melts if pressure on the system is increased
C. More of liquid freezes if pressure on the system is increased
D. The degree of advancement of the reaction do not depend on pressure.

Answer

B

Explanation

`N_(2)(g) + O_(2)(g) hArr 2NO(g)`
`1mol e 2mol e 3mol e`
`K_(c)=((3))^(2)/(1xx2)=((g)/(2))`.
Let a mole of `O_(2)` is added, Then,
`t=0{:(N_(2)(g),+,O_(2)(g),hArr,2NO(g)),(1"mole",,2"mole",,3"mole"),(1,,(2+a),,3),((1-x),,(2+a)-x,,(3+2x)):}`
`[NO]=[(3+2x)/(100)]=0.04 , (3+2x)=4`.
`2x=1, x=0.5`.
`((3+2x)^2) /((1-x)(2+a-x))=(9)/(2)`
`K_(c)=((4)^2))^(2)/(0.5[(1.5)-a])=(9)/(2)`
`=(16)/(0.5(1.5+a))=(9)/(2)`
`=(35)/(4.5)=[1.5+a]`
`7.11=1.5+a`.
`a=(101)/(18)=5.61`