Answer : The correct option is, (E) 7.8 atm
Explanation :
The partial pressure of = 8.00 atm
The partial pressure of = 5.00 atm
= 0.0025
The balanced equilibrium reaction is,
Initial pressure 8.00 5.00 0
At eqm. (8.00-x) (5.00-x) 2x
The expression of equilibrium constant for the reaction will be:
Now put all the values in this expression, we get :
By solving the terms, we get:
The equilibrium partial pressure of = (8.00 - x) = (8.00 - 0.15) = 7.8 atm
Therefore, the equilibrium partial pressure of is 7.8 atm.