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Chemical equilibrium combined

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Last updated about 1 year ago
20 questions
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Question 1
1.

Hydrogen gas and iodine gas are introduced into a flask, which is then sealed and allowed to reach dynamic chemical equilibrium.
The balanced equation is:

H2(g) + I2(g) ⇌ 2HI(g).

Which one of the graphs shows how the rates of the forward and reverse reactions change with time?

Question 2
2.

Which of the following is true regarding the concentration of products, for a chemical system at equilibrium?

Question 3
3.

For the following system at equilibrium, which statement is INCORRECT?

Question 4
4.

Consider the amount (mol) vs. time graph for the closed system containing the gases of equation A at room temperature. The volume of the container is 1 dm3.
At which of the following time(s) is the the system NOT in equilibrium?

Question 5
5.

A disturbance to temperature was made at 10 minutes. Which reaction was favoured?

Question 6
6.

Therefore, considering your answer above, what temperature change was made at 10 minutes?

Question 7
7.

Question 8
8.

Given the following system at equilibrium:

The addition of Cl- ions will cause the concentration of Ag+(aq) to

Question 9
9.

Given the following system at equilibrium:


Increasing the concentration of N2(g) will increase the forward reaction rate due to:

Question 10
10.

Consider this system at equilibrium:

What colour could the gas mixture possibly be at equilibrium?

Question 11
11.

Question 12
12.

What disturbance was made at 8 minutes?

Question 13
13.

What disturbance was made at 15 minutes?

Question 14
14.

Which reaction was favoured at 15 minutes?

Question 15
15.

Increasing the pressure in a gaseous system at equilibrium causes .....

Question 16
16.

Consider the Haber reaction system at equilibrium.


What happens when pressure is decreased?

Question 17
17.

Consider the following system in equilibrium.


Pressure is increased by reducing the volume of the container.
What does NOT happen as a result?

Question 18
18.

Consider the following graph.
What is NOT a possible cause of the disturbance?

Question 19
19.

Consider the following system at equilibrium which experienced a disturbance.


What was the disturbance?

Question 20
20.

What is the equilibrium constant Kc expression for the following balanced equation?