AP MCQ 07ABCDEFGHIJKLMN PART 2

Addition of an inert gas such as neon, to an equilibrium mixture of nitrogen, hydrogen and ammonia (shown below), will result in what change?

N₂ + 3H₂ ⇌ 2NH₃

Which of the following changes will result in more CO_(g) being created in the equilibrium mixture?

H_2(g) + CO_2(g) ⇌ H₂O_(g) + CO_(g)

In which of the following equilibrium systems will the mole fraction of products be increased, by the decreasing the total pressure on the system?

Dichromate(VI) ions (orange) can be converted to chromate(VI) ions (yellow) by adding water. The equilibrium below can be established. Which of the following is initially UNCHANGED by the addition of hydroxide ions to the equilibrium mixture?

Cr₂O₇^2-_(aq) + H₂O_(l) ⇌ 2CrO₄^2-_(aq) + 2H⁺_(aq)

In the equilibrium shown below, Fe³⁺ is a yellow brown color, and the [FeSCN]²⁺ ion is blood red.

Fe³⁺ + SCN^- ⇌ [FeSCN]²⁺ ∆H = negative

Question 05:

If a reaction mixture is plunged into an ice-bath, what observation might one reasonably expect to make?

Addition of hydroxide ions to the system will result in what, observable change?

Consider the equilibrium shown below.

3Cl_2(g) + 6OH^-_(aq) ⇌ 5Cl^-_(aq) + ClO₃^-_(aq) + 3H₂O_(l)

Assuming silver hydroxide to be soluble, addition of which of the following to the equilibrium mixture, will cause the equilibrium to shift to the product side?

Which of the following equilibrium mixtures is unaffected by a change in the volume of the reaction vessel?

Which change in conditions will cause the concentration of products in the equilibrium mixture below, to be increased?

N_2(g) + 3H_2(g) ⇌ 2NH_3(g) ΔH = -92 kJ mol^-1

Consider the equilibrium system shown below. The equilibrium position can be moved to the product side by applying which of the following changes?

CO_(g) + 2H_2(g) ⇌ CH₃OH_(g)