At 100oC the equilibrium constant for the reaction below has the value of Keq = 2.19 x 10−10. COCl2(g) ⇄ CO(g) + Cl2(g) Are the following mixtures of COCl2, CO, and Cl2 at equilibrium? If not, indicate the direction that the reaction must proceed to achieve equilibrium. (i) PCOCl2 = 5.00 × 10−2 atm; PCO = 3.31 × 10−6 atm; PCl2 = 3.31 × 10−6 atm (ii) PCOCl2 = 3.50 × 10−3 atm; PCO = 1.11 × 10−5 atm; PCl2= 3.25 × 10−6 atm

(i) not at equilibrium, left to right (ii) equilibrium

(i) equilibrium, (ii) not at equilibrium, right to left

(i) equilibrium, (ii) not at equilibrium, left to right

(i) not at equilibrium, right to left, (ii) equilibrium

(i) equilibrium, (ii) equilibrium

(i) equilibrium, (ii) not at equilibrium, right to left

Explanation:

A reaction is in equilibrium when the ki = keq. If ki>keq, the reaction proceeds from the right to the left and vice versa.

For the reaction:

COCl₂(g) ⇄ CO(g) + Cl₂(g)

keq = 2,19x10⁻¹⁰

(i) =

As ki = keq; the mixture (i) is in equilibrium

(ii)

As ki > keq, the reaction proceeds from the right to the left.

Thus, right answer is:

(i) equilibrium, (ii) not at equilibrium, right to left

I hope it helps!

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

answer: i dont know the answer but this might

explanation:

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