Carbon tetrachloride can be produced by the following reaction: Suppose 1.20 mol of and 3.60 mol of were placed in a 1.00-L flask at an unknown temperature. After equilibrium has been achieved, the mixture contains 0.72 mol . Calculate at the unknown temperature.

The given question is incomplete. The complete question is :

Carbon tetrachloride can be produced by the following reaction:

Suppose 1.20 mol of and 3.60 mol of  were placed in a 1.00-L flask at an unknown temperature. After equilibrium has been achieved, the mixture contains 0.72 mol  of . Calculate equilibrium constant at the unknown temperature.

The equilibrium constant at unknown temperature is 0.36

Explanation:

Moles of   = 1.20 mole

Moles of   = 3.60 mole

Volume of solution = 1.00  L

Initial concentration of =

Initial concentration of =

The given balanced equilibrium reaction is,

Initial conc.         1.20 M        3.60 M                  0                  0

At eqm. conc.     (1.20-x) M   (3.60-3x) M   (x) M        (x) M

The expression for equilibrium constant for this reaction will be,

Now put all the given values in this expression, we get :

Given :Equilibrium concentration of , x =

Thus equilibrium constant at unknown temperature is 0.36

answer

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