Chemistry w06 paper 1 question

[solidsnake]

Salaam !
Can anyone please explain me physics w_06 paper 1 question 11.
God Bless You.

 

[beacon_of_light]

C2H5OH + CH3CO2H -------------------->CH3CO2C2H5 + H2O
initial moles: 1 1
moles used x x x x
or produced:
moles
at equilibrium: (1-x) (1-x) x x

Kc = ( ester)(water) / (alcohol) ( acid)
Kc = (x)(x) / (1-x) ( 1-x)
4 = x^2 / (1-x)^2
taking square root of both sides,
2 = x/ (1-x)

Solve for x.... you get x= 2/3 And the correct OPTION is "B" .......

 

[UxaiR]

Salaam !
Can anyone please explain me physics w_06 paper 1 question 11.
God Bless You.

the topic say's chemistry question but in the post you have asked for physics question
:geek:

 

[MAVtKnmJ]

I'm sure the OP meant, Physics