Equilibria - AQA Synergy

1

What is the symbol '⇌' used to represent?

2

What term is used to describe a chemical reaction in which the forward and reverse reaction rates are the same?

3

What is produced in the backward reaction in this equilibrium:

NH4Cl(s) ⇌ NH3(g) + HCl(g)?

4

If the forwards reaction is endothermic, what can be deduced about the reverse reaction?

5

When a reversible reaction is at equilibrium, which of these statements is true?

6

The equation for the Haber process is:

N2 + 3H2 ⇌ 2NH3.

What gases will be present at equilibrium?

7

One of the stages in sulfuric acid production is described by this equation:

2SO2(g) + O2(g) ⇌ 2SO3(g).

What will happen to the yield of SO3 if the pressure is increased? - Higher

8

If the forward reaction in a reversible reaction is endothermic, what will be the effect of decreasing the temperature? - Higher

9

What is the effect of decreasing the pressure on the following equilibrium:

2NO(g) + O2(g) ⇌ 2NO2(g)? - Higher

10

What is the effect on an equilibrium if the concentration of a product is decreased? - Higher