A mixture is prepared with [CO] = 0.035, [Cl2] = 0.015, and [COCl2] = 0.95. It is known that Kc for the equilibrium is 1.2 x 10-3
at 400OC. Predict what will happen.
Choose one answer.
a. The reaction is at equilibrium so no net reaction occurs.
b. The reaction occurs in the forward direction.
c. The reaction occurs in the reverse direction.
d. It is impossible to predict without more information.
Write the equation.
Write the expression for Kc.
Substitute into Kc and calculate the reaction quotient, Q. Compare that with Kc.
If Q<Kc, it means the numerator is too small, the denominator is too large, and the reaction will go to the right.
If Q>Kc, it means the numerator is too large, the denominator is too small, and the reaction will go to the left.
If Q=Kc, the reaction is at equilibrium.
I CALCULATED IT OUT TO Q = 1.80*10^3
SO IT WAS A RIGHT SHIFT FORWARD BC Q<K meaning that substances on left react to form substances on the left to reach eq...
SO I GOT B as the answer
IS THAT CORRECT????
To calculate Q all you have to do is treat it like a K. Q = C(COCl2)/C(Cl2)*C(CO). This equals 1.8 x 10^3. We can see now that Kc < Q therefore the reaction will proceed to the left. If it were Kc > Q then it would proceed to the right.
To predict what will happen in this given scenario, we need to compare the initial concentrations of the reactants ([CO] and [Cl2]) with the equilibrium concentrations ([COCl2]).
Kc is the equilibrium constant and represents the ratio of the products to the reactants at equilibrium. It is defined as:
Kc = [COCl2] / ([CO] * [Cl2])
Given that the equilibrium constant Kc is 1.2 x 10^-3, and the initial concentrations are [CO] = 0.035 and [Cl2] = 0.015, we can calculate the theoretical equilibrium concentration of [COCl2]:
[COCl2] = Kc * [CO] * [Cl2]
[COCl2] = (1.2 x 10^-3) * (0.035) * (0.015)
[COCl2] = 6.3 x 10^-7
Comparing this value with the actual equilibrium concentration of [COCl2] = 0.95, we can determine the direction of the reaction:
If the actual concentration of [COCl2] is greater than the calculated equilibrium concentration, it means that the reaction has occurred in the forward direction. Therefore, the answer is:
b. The reaction occurs in the forward direction.